Caterpillar Cat 375 Excavator (Prefix 8WJ) Service Repair Manual (8WJ00001 and up)

1
Service Repair Manual
Models 375 and 375 L Excavator
2
Shutdown SIS
Previous Screen
Product EXCAVATOR Model 375-A EXCAVATOR
8WJ Configuration 375 375 L Excavators
8WJ00001-UP (MACHINE) POWERED BY 3406 Engine
Disassembly and Assembly 375 EXCAVATOR MACHINE
SYSTEMS Media Number -SENR6027-02 Publication
Date -01/06/2004
Date Updated -10/08/2009
SENR60270029
Final Drives SMCS - 4050-017 4050-010 Remove
Install Final Drives

• Start By
• separate track assemblies
• remove travel motors
• remove final drive sprockets
• The travel motor, and final drive sprocket do
  not have to be removed prior to removal or
  installation of the final drive from the track
  roller frame. However, these components have to
  be removed to disassemble the final drive.

1. Install Tool (A) to the final drive as shown.
3
2. Fasten lifting straps and a hoist to Tool (A)
and final drive (1) as shown.

• NOTE It may be necessary to adjust the lifting
  straps for correct balance of the final drive.
• Remove 24 bolts (2) that hold the final drive to
  the track roller frame. Remove the final drive
  from the track roller frame. The weight of the
  final drive is 953 kg (2100 lb).
• NOTE The following steps are for the
  installation of the final drive.
• Make sure the mating surfaces of the final drive
  and track roller frame are clean and free of dirt
  and debris.
• Fasten lifting straps and a hoist to Tool (A) and
  the final drive as shown. Make sure the final
  drive is level.
• Put final drive (1) in position in the track
  roller frame.
• Put 9S-3263 Thread Lock on the threads of 24
  bolts (2) that hold the final drive to the track
  roller frame. Install the 24 bolts, and tighten
  them evenly.
• End By
• install final drive sprockets
• install travel motors
• connect track assemblies

Disassemble Assemble Final Drives
Start By a. remove final drives
4

1. Fasten the final drive to Tool (A). The weight of
   the final drive is 953 kg (2100 lb).
2. Fasten Tool (B) and a hoist to cover (2) as
   shown.
3. Remove 20 bolts (1) and the washers that hold
   cover (2) in position. Remove the cover. The
   weight of the cover is 64 kg (140 lb).

• NOTE Shims (3) and spacer (4) may stay with
  cover (2) during its removal.
• Remove shims (3) and spacer (4).
• Fasten Tool (C) and a hoist to carrier assembly
  (5) as shown. Remove the carrier assembly. The
  weight of carrier assembly (5) is 159 kg (350
  lb).
• Disassemble carrier assembly (5) as follows

a. Remove sun gear (6).
5
b. Remove spacer (7).

1. Drive spring pin (8) into planetary shaft (9)
   with a hammer and punch.
2. Remove planetary shaft (9), two thrust washers
   (10) and planetary gear (12) from the carrier.
   Remove bearing (11) from planetary gear (12).
   Drive spring pin (8) out of planetary shaft (9)
   with a hammer and punch.
3. Remove the other two planetary gears from the
   carrier as in Steps 6c and 6d.

f. Remove retaining ring (13) and sun gear (14)
from the carrier.
7. Remove spacer (15) from the carrier assembly.
6
https//www.aservicemanualpdf.com/ My Dear
Friend! Thank you very much for visiting. Full
manual if required, please enter the following
URL into your browser. https//www.aservicemanual
pdf.com/
7
8. Fasten Tool (B) and a hoist to ring gear (16)
as shown. Remove ring gear (16). The weight of
the ring gear is 50 kg (110 lb).

1. Fasten Tool (B) and a hoist to carrier assembly
   (17) as shown. Remove the carrier assembly. The
   weight of the carrier assembly is 154 kg (340
   lb).
2. Disassemble carrier assembly (17) as follows

• Drive spring pin (18) into planetary shaft (19)
  with a hammer and punch.
• Remove planetary shaft (19), two thrust washers
  (20) and planetary gear (22) from the carrier.
  Remove two bearings (21) from the planetary gear.
  Drive spring pin (18) out of planetary shaft
• (19) with a hammer and punch.
• c. Remove the other three planetary gears from
  the carrier as in Steps 10a and 10b.

8
11. Fasten Tool (B) and a hoist to ring gear (23)
as shown. Remove the ring gear. The weight of the
ring gear is 125 kg (275 lb).

1. Remove O-ring seal (24) from the main housing.
2. Fasten Tool (B) and a hoist to carrier assembly
   (25) as shown. Remove the carrier assembly from
   the gear. The weight of the carrier assembly is
   34 kg (75 lb).
3. Disassemble carrier assembly (25) as follows

1. Drive spring pin (26) into planetary shaft (27)
   with a hammer and punch.
2. Remove planetary shaft (27), two thrust washers
   (28) and planetary gear (29) from the carrier.
   Remove bearing (30) from the planetary gear.
3. Remove the other three planetary gears from the
   carrier as in Steps 14a and 14b.

9
15. Fasten Tooling (D) and a hoist to the main
housing as shown. Remount the main housing to
Tool (A) as shown.
16. Remove 22 socket head bolts (31) that hold
gear (32) to the main housing.
17. Install two 10 1.5 mm forcing screws in
gear (32). Tighten the forcing screws evenly to
loosen gear (32) from the dowel pins in the main
housing.
18. Fasten Tool (B) and a hoist to gear (32) as
shown. Remove the gear from the main housing. The
weight of the gear is 27 kg (60 lb).
10

1. If necessary, remove six dowel pins (35) from the
   main housing.
2. Remove shim (33) and bearing (34) from the main
   housing.

21. Using Tool (D) and a hoist, remove main
housing (36) from the end housing. The weight of
the main housing is 245 kg (540 lb).

1. Remove Duo-Cone seal (37) from the main housing.
2. Remove two races (38) from the main housing.

• Remove the other part of Duo-Cone seal (37) from
  the end housing.
• Remove bearing (39) from end housing (40).
• NOTE The following steps are for the assembly of
  the final drive.

11
26. Make sure all parts of the final drive are
thoroughly clean and free of dirt and debris
prior to assembly. Check the condition of all
O-ring seals used in the final drive. If any of
the seals are worn or damaged, use new parts for
replacement. Reassemble the final drive on Tool
(A).
27. Apply a thin coat of 5P-3931 High Temperature
Anti-Seize Compound to the surface on end housing
(40) that makes contact with bearing (39).
Install bearing (39) on the end housing as shown.
Make sure the bearing is in contact with the
shoulder on the end housing.
28. Apply a thin coat of 5P-3931 High Temperature
Anti-Seize Compound to the surface on main
housing (36) that make contact with two races
(38). Install two races (38) in the main housing
as shown. Make sure the races are in contact with
the shoulders on the main housing.
29. Fasten Tool (D) and a hoist to the main
housing as shown. Install the main housing on the
end housing.
30. Install bearing (34) in the main housing.
12
31. Adjust the bearing preload of the final
drive. Determine the correct amount of shims (33)
required for the proper bearing preload as
follows

• Typical Example
• Using a depth micrometer, measure the step height
  of gear (32) at several locations around the
  gear. Find the average of the dimensions
  measured, and record it. Call it dimension (X).
• Apply a load of 10000 kg (22000 lb) on bearing
  (34).
• Turn main housing (36) several times to seat the
  bearings.
• Reduce the load to 4500 450 kg (9900 990 lb).

• Typical Example
• e. With the load still on the bearings, measure
  the distance between the top face of the main
  housing and the inner race of bearing (34). Do
  this in several locations around the main
  housing. Find the average of the dimensions
  measured, and record it. Call it dimension (Y).
• f. Determine the correct shim thickness to be
  used between the main housing and gear (32). The
  shim thickness is equal to dimension (Y) - (X)
  0.10 mm (.004 in).
• Install shims (33) of the correct thickness,
  which was determined in Steps 31a through 31f, in
  the main housing.
• Apply a thin coat of 5P-3931 High Temperature
  Anti-Seize Compound to the six dowel pin bores in
  the main housing. Reinstall six dowel pins (35)
  in the main housing.
• Remove shims (33) from main housing (36).
• Remove main housing (36) from end housing (40).
• NOTICE

13
See the topic "Assembly And Installation Of
Conventional Duo-Cone Seals" in this module.

• NOTE The rubber seals and all surfaces that make
  contact with the seals must be clean and dry.
  After installation of the seals, put clean SAE 30
  oil on the contact surfaces of the metal seals.
• Using Tool (E), install Duo-Cone seal (37) in end
  housing (40) and in main housing (36).
• Reinstall main housing (36) on end housing (40).
• Reinstall shims (33) in the main housing.

1. Put gear (32) in its original position in the
   main housing.
2. Put 9S-3263 Thread Lock on the threads of 22
   socket head bolts (31) that hold gear (32) in
   position. Install the socket head bolts, and
   tighten them evenly to a torque of 1000 125 Nm
   (740 90 lb ft).
3. Assemble carrier assembly (25) as follows

14

1. Put clean SAE 30 oil on bearing (30). Install
   bearing (30) in planetary gear (29).
2. Put a thrust washer (28) on each side of
   planetary gear (29). Install the planetary gear
   and thrust washers in the carrier.
3. Install planetary shaft (27) in the carrier and
   through the planetary gear. Make sure the spring
   pin hole in the planetary shaft is in alignment
   with the spring pin hole in the carrier.
4. Install spring pin (26) in the carrier and into
   the planetary shaft. Install the spring pin until
   it is 2 to 3 mm (.078 to .118 in) below the
   outside surface of the carrier, and with the
   split in the spring pin facing to either side of
   the carrier as shown in Illustration C28668P1. To
   prevent the spring pin from falling out, make a
   stake mark on each side of the spring pin hole in
   the carrier. Each stake mark should be
   approximately 1.5 mm (.06 in) from the outside
   diameter of the spring pin hole.
5. Install the other three planetary gears in the
   carrier as is Steps 41a through 41d.

1. Fasten Tool (B) and a hoist to carrier assembly
   (25). Install the carrier assembly in the in the
   final drive.
2. Install O-ring seal (24) on the main housing as
   shown.

15

1. Put 1U-8846 Gasket Maker on the mating surfaces
   of ring gear (23) and the main housing. Fasten
   Tool (B) and a hoist to ring gear (23). Put the
   ring gear in its original position on the main
   housing.
2. Assemble carrier assembly (17) as follows

a. Put clean SAE 30 oil on bearings (21). Install
bearings (21) in planetary gear (22).
16

1. Put a thrust washer (20) on each side of
   planetary gear (22). Install the planetary gear
   and thrust washers in the carrier.
2. Install planetary shaft (19) in the carrier and
   through the planetary gear. Make sure the spring
   pin hole in the planetary shaft is in alignment
   with the spring pin hole in the carrier.
3. Install spring pin (18) in the carrier and into
   the planetary shaft. Install the spring pin until
   it is 2 to 3 mm (.078 to .118 in) below the
   outside surface of the carrier, and with the
   split in the spring pin facing to either side of
   the carrier as shown in Illustration C28668P1. To
   prevent the spring pin from falling out, make a
   stake mark on each side of the spring pin hole in
   the carrier. Each stake mark should be
   approximately 1.5 mm (.06 in) from the outside
   diameter of the spring pin hole.
4. Install the other three planetary gears in the
   carrier as is Steps 45a through 45d.

46. Fasten Tool (B) and a hoist to carrier
assembly (17) as shown. Install the carrier
assembly in ring gear (23).
47. Put 1U-8846 Gasket Maker on the mating
surfaces of ring gear (16). Fasten Tool (B) and a
hoist to ring gear (16). Put the ring gear in its
original position on ring gear (23).

1. Install spacer (15) in carrier assembly (17).
2. Assemble carrier assembly (5) as follows

17
a. Install sun gear (14) and retaining ring (13)
in the carrier.
b. Put clean SAE 30 oil on bearing (11). Install
bearing (11) in planetary gear (12). c. Put a
thrust washer (10) on each side of planetary gear
(12). Install the planetary gear and thrust
washers in the carrier.
18

1. Install planetary shaft (9) in the carrier and
   through the planetary gear. Make sure the spring
   pin hole in the planetary shaft is in alignment
   with the spring pin hole in the carrier.
2. Install spring pin (8) in the carrier and into
   the planetary shaft. Install the spring pin until
   it is 2 to 3 mm (.078 to .118 in) below the
   outside surface of the carrier, and with the
   split in the spring pin facing to either side of
   the carrier as shown in Illustration C28668P1. To
   prevent the spring pin from falling out, make a
   stake mark on each side of the spring pin hole in
   the carrier. Each stake mark should be
   approximately 1.5 mm (.06 in) from the outside
   diameter of the spring pin hole.
3. Install the other two planetary gears in the
   carrier as is Steps 49b through 49e.

g. Install spacer (7) in the carrier.
h. Install sun gear (6) in the carrier.

• Fasten Tool (C) to carrier assembly (5) as shown.
  Put the carrier assembly in position in the final
  drive.
• Use the procedure which follows to determine the
  end play of sun gear (6)
• NOTE The end play of sun gear (6) is controlled
  by the addition of shims (3) used between cover
• (2) and spacer (4).

19

• Typical Example
• Install spacer (4) in cover (2) without shims.
• Use a straight edge and a depth micrometer to
  measure the distance from the machined surface of
  cover (2) to the top of spacer (4). Record this
  dimension. Subtract the thickness of the straight
  edge from the distance measured, and call the
  difference dimension (Q).

• Typical Example
• c. Use a straight edge and a depth micrometer to
  measure the distance from the upper surface of
  sun gear (6) to the machined surface of ring gear
  (16). It will be necessary to use a spacer block
  on top of the sun gear so the straight edge will
  clear the carrier assembly. Record this
  dimension. Subtract the thickness of the straight
  edge and the spacer block from the distance
  measured, and call the difference dimension (P).
• d. Subtract dimension (P) from dimension (Q).
  Record this dimension. The clearance required
  between the top surface of sun gear (6) to the
  top of spacer (4) must be 1.00 to 2.60 mm (.039
  to .102 in). Add shims (3) between spacer (4) and
  cover (2) to obtain the correct clearance.
• Remove spacer (4) from cover (2).
• Put 1U-8846 Gasket Maker on the mating surfaces
  of ring gear (16) and cover (2).
• Install shims (3) determined in Steps 51a through
  51d and spacer (4) in cover (2). Use 5P- 0960
  Multipurpose Grease to hold the shims and spacer
  in the cover.

20

• Fasten Tool (B) and a hoist to cover (2) as
  shown. Put the cover in its original position on
  the final drive.
• Put 9S-3263 Thread Lock on the threads of 20
  bolts (1). Install 20 bolts (1) that hold cover
• (2) in position. Tighten the bolts to a torque of
  1800 200 Nm (1320 150 lb ft).
• End By
• a. install final drives

Copyright 1993 - 2020 Caterpillar Inc. All Rights
Reserved. Private Network For SIS Licensees.
Mon Dec 21 093523 UTC0800 2020
21
Shutdown SIS
Previous Screen
Product EXCAVATOR Model 375-A EXCAVATOR
8WJ Configuration 375 375 L Excavators
8WJ00001-UP (MACHINE) POWERED BY 3406 Engine
Disassembly and Assembly 375 EXCAVATOR MACHINE
SYSTEMS Media Number -SENR6027-02 Publication
Date -01/06/2004
Date Updated -10/08/2009
SENR60270030
Automatic Travel Speed Change Valve SMCS -
3220-010 3220-017 Remove Install Automatic
Travel Speed Change Valve NOTE The automatic
travel speed change valve is located under the
service platform. Access to the automatic travel
speed change valve can be made from above or from
below the machine.
At operating temperature, the hydraulic oil tank
is hot and under pressure. Hot oil can cause
burns. To prevent possible personal injury,
release the pressure in the implement hydraulic
circuits (boom, stick and bucket) before any
hydraulic lines or components are disconnected or
removed.

• Release the pressure in the hydraulic system as
  follows
• Fully retract the rod in the stick cylinder.
• Adjust the position of the bucket so it will be
  flat on the ground when the boom is lowered.
• Lower the boom until the bucket is flat on the
  ground.
• Shut off the engine, and put the hydraulic
  activation control lever in the "Lock" position.
• Move the control levers for the boom, bucket,
  stick and swing through their full travel
  strokes. This will relieve any pressure that may
  be present in the pilot system.
• Slowly loosen the air breather cap on the
  hydraulic oil tank to release the pressure.
• Tighten the air breather cap on the hydraulic oil
  tank.

22
h. The pressure in the hydraulic system has now
been released. Lines and components can now be
removed.
2. To gain access to the automatic travel speed
change valve from above, remove bolts (1) that
hold sheet assembly (2) in position. Remove the
sheet assembly. Access to the valve from below
the machine can be made through the opening at
the rear of the main frame.
View From Above Automatic Travel Speed Change
Valve

• View From Below Automatic Travel Speed Change
  Valve
• Put identification marks on four hose assemblies
  (3) for installation purposes. Disconnect four
  hose assemblies (3) from the automatic travel
  speed change valve. Put plugs in the hose
  assemblies to prevent oil loss and to keep dirt
  and debris out of the hydraulic system.
• Remove four bolts (4) and the washers that hold
  the automatic travel speed change valve in place.
  Remove automatic travel speed change valve (5).
• NOTE Install the automatic travel speed change
  valve in the reverse order of removal.
• Check the oil level in the hydraulic oil tank.
  Fill the hydraulic oil tank with oil to the
  correct level. See the Operation Maintenance
  Manual for the correct filling procedure.

23
Disassemble Assemble Automatic Travel Speed
Change Valve Start By a. remove automatic travel
speed change valve 1. Make sure the automatic
travel speed change valve is thoroughly clean
prior to disassembly. Put identification marks on
all parts of the automatic travel speed change
valve for assembly purposes.
2. Remove four socket head bolts (1) and plates
(2) and (3) from the valve body. If necessary,
remove the locknut and adjusting screw from plate
(2).
3. Install a suitable size bolt in the threaded
hole in the end of stopper (4). Pull stopper (4)
straight out of the valve body.
NOTICE
24
Make sure not to lose ball (10) when guide (6) is
removed from the valve body.

• Remove spring (5) and guide (6) from the valve
  body. Remove ball (10) from guide (6).
• Remove O-ring seal (9) from stopper (4).
• Remove stopper (12) and the spool assembly from
  the valve body.
• Remove piston (8) from stopper (12). Remove spool
  (7) from valve (11).
• Remove two O-ring seals (14) from stopper (12).
  Remove ring (13) from valve (11).
• NOTE The following steps are for the assembly of
  the automatic travel speed change valve.
• Make sure all parts of the automatic travel speed
  change valve are thoroughly clean prior to
  assembly of the valve. Put clean hydraulic oil on
  all internal parts. Check the condition of all O-
  ring seals and rings used in the automatic travel
  speed change valve. If any of the seals or rings
  are worn or damaged, use new parts for
  replacement.
• Install two O-ring seals (14) on stopper (12).
• Install ring (13) on valve (11).
• Install O-ring seal (9) on stopper (4).
• Install piston (8) in stopper (12).
• Install spool (7) in valve (11).
• Install valve (11) and stopper (12) in the valve
  body.
• Install ball (10) in guide (6).
• Install guide (6), spring (7) and stopper (4) in
  the valve body.
• Reinstall plates (2) and (3) and socket head
  bolts (1) that hold them.
• NOTE If the adjustment screw and locknut in
  plate (2) was removed, tighten the locknut to a
  torque of 16 1.6 Nm (12 1 lb ft) after
  adjustment of the automatic travel speed change
  valve.
• End By
• a. install automatic travel speed change valve

Copyright 1993 - 2020 Caterpillar Inc. All Rights
Reserved. Private Network For SIS Licensees.
Mon Dec 21 093611 UTC0800 2020
25
Shutdown SIS
Previous Screen
Product EXCAVATOR Model 375-A EXCAVATOR
8WJ Configuration 375 375 L Excavators
8WJ00001-UP (MACHINE) POWERED BY 3406 Engine
Disassembly and Assembly 375 EXCAVATOR MACHINE
SYSTEMS Media Number -SENR6027-02 Publication
Date -01/06/2004
Date Updated -10/08/2009
SENR60270031
Swivel Group SMCS - 5060-010 5060-017 Remove
Install Swivel Group
At operating temperature, the hydraulic oil tank
is hot and under pressure. Hot oil can cause
burns. To prevent possible personal injury,
release the pressure in the implement hydraulic
circuits (boom, stick and bucket) before any
hydraulic lines or components are disconnected or
removed.

• Release the pressure in the hydraulic system as
  follows
• Fully retract the rod in the stick cylinder.
• Adjust the position of the bucket so it will be
  flat on the ground when the boom is lowered.
• Lower the boom until the bucket is flat on the
  ground.
• Shut off the engine, and put the hydraulic
  activation control lever in the "Lock" position.
• Move the control levers for the boom, bucket,
  stick and swing through their full travel
  strokes. This will relieve any pressure that may
  be present in the pilot system.
• Slowly loosen the air breather cap on the
  hydraulic oil tank to release the pressure.
• Tighten the air breather cap on the hydraulic oil
  tank.
• The pressure in the hydraulic system has now been
  released. Lines and components can now be removed.

26

1. Clean the outside of the swivel group and the
   area around the swivel group prior to removal.
2. Put identification marks on all hose assemblies
   and tube assemblies that are connected to the
   swivel group for installation purposes.

4. Remove bolt (1) and the washer from the
setting plate.

1. Disconnect three tube assemblies (2) from the
   swivel group.
2. Disconnect three hose assemblies (3) from the
   swivel group.

7. Disconnect tube assembly (4) from the swivel
group.
8. Remove eight bolts (5).
27
View From Under Machine 9. Remove 12 bolts (6)
and the washers that hold three covers (7) to the
undercarriage frame assembly. Remove the three
covers.

• View From Under Machine
• Disconnect four tube assemblies (10) from the
  bottom of the swivel group.
• Disconnect two hose assemblies (8), and remove
  fitting (9) from the bottom of the swivel group.
• Disconnect two hose assemblies (12) from the
  bottom of the swivel group.
• Remove six bolts (11) from the bottom of the
  swivel group.
• Fasten lifting straps and a hoist to the swivel
  group. Remove the swivel group from the machine.
  The weight of the swivel group is 120 kg (265
  lb).
• NOTE The following steps are for the
  installation of the swivel group.
• Check the condition of all O-ring seals used in
  the hose assemblies and tube assemblies that are
  connected to the swivel group. If any of the
  seals are worn or damaged, use new parts for
  replacement.
• Prior to installing the swivel group, put 8C-8422
  Gasket Maker on the surface of the swivel group
  which makes contact with the undercarriage frame
  assembly.
• Install the swivel group in the reverse order of
  removal.
• Fill the hydraulic oil tank with oil to the
  correct level. See the Operation Maintenance
  Manual for the correct filling procedure.

Disassemble Assemble Swivel Group
28
Start By a. remove swivel group 1. Thoroughly
clean the outside of the swivel group prior to
disassembly.

• Fasten the swivel group to Tool (A) with cover
  (2) facing up. The weight of the swivel group is
• 120 kg (265 lb).
• Remove six bolts (1) and cover (2) from the
  outside housing.
• Remove seal (4) from the outside housing. Remove
  three bolts (3) and retainer (5) from the end of
  the rotor.

29

• Using Tooling (B), separate outside housing (6)
  from rotor (9). The weight of the outside housing
  is 52 kg (115 lb). The weight of the rotor is 55
  kg (122 lb).
• Remove five seals (7) from outside housing (6).
• Remove three seals (8) from outside housing (6).
• NOTE The following steps are for the assembly of
  the swivel group.
• Make sure all parts of the swivel group are
  thoroughly clean and free of dirt and debris
  prior to assembly.
• Check the condition of seals (4), (7) and (8)
  used in the swivel group. If any of the seal are
  worn or damaged, use new parts for replacement.
• Install five seals (7) and three seals (8) in
  outside housing (6) as shown. Put 5P-0960
  Multipurpose Grease on the seals.
• Carefully install outside housing (6) over rotor
  (9).
• Install retainer (5) and three bolts (3) that
  hold the rotor and outside housing together.
• Install seal (4) in the outside housing. Install
  cover (2) and six bolts (1) that hold it. End By
• a. install swivel group

Copyright 1993 - 2020 Caterpillar Inc. All Rights
Reserved. Private Network For SIS Licensees.
Mon Dec 21 093659 UTC0800 2020
30
Shutdown SIS
Previous Screen
Product EXCAVATOR Model 375-A EXCAVATOR
8WJ Configuration 375 375 L Excavators
8WJ00001-UP (MACHINE) POWERED BY 3406 Engine
Disassembly and Assembly 375 EXCAVATOR MACHINE
SYSTEMS Media Number -SENR6027-02 Publication
Date -01/06/2004
Date Updated -10/08/2009
SENR60270032
Swing Control Valve SMCS - 5480-010
5480-017 Remove Install Swing Control
Valve Start By a. remove drift reduction valve
(stick)

1. Put identification marks on six hose assemblies
   (1) for installation purposes. Disconnect the six
   hose assemblies.
2. Disconnect two electrical connectors (2).

1. Remove clamp (8). Remove tube assembly (5).
2. Remove tube assemblies (3) and (4).

31
Thank you very much for your reading.
Please Click Here. Then Get COMPLETE MANUAL. NO
WAITING
GET MORE OTHER MANUALS
https//www.aservicemanualpdf.com/

• NOTE
• If there is no response to click on the link
  above, please download the PDF document first
  and then click on it.

GET MORE OTHER MANUALS
https//www.aservicemanualpdf.com/
32

1. Remove two bolts (6).
2. Remove support (7) and the tube assemblies as a
   unit.

1. Put identification marks on four hose assemblies
   (10) for installation purposes. Disconnect the
   four hose assemblies from the swing control
   valve.
2. Put identification marks on three hose assemblies
   (9) for installation purposes. Disconnect the
   three hose assemblies from the swing control
   valve.

• 9. Fasten two lifting straps and a hoist to swing
  control valve (12) as shown. Remove eight bolts
• (11). Remove the swing control valve. The weight
  of the swing control valve is 43 kg (95 lb).
• NOTE The following steps are for the
  installation of the swing control valve.
• Check the condition of all O-ring seals used in
  the hose and tube assemblies that are connected
  to the swing control valve. If any of the seals
  are worn or damaged, use new parts for
  replacement.
• Install the swing control valve in the reverse
  order of removal. End By
• install drift reduction valve (stick)
• Disassemble Assemble Swing Control Valve
• Start By
• a. remove swing control valve
• 1. Make sure the outside of the swing control
  valve is thoroughly clean prior to disassembly.
  During disassembly of the swing control valve,
  mark all components so they can be reinstalled in
  their original locations.

33
There is spring force behind each housing (2).
When bolts (1) are removed, the spring force will
be released. To prevent possible personal injury,
slowly and evenly remove bolts (1) while
retaining housings (2).

1. While retaining housings (2), slowly and evenly
   loosen bolts (1) to release the spring force.
   Remove the bolts and housings. If necessary,
   remove the plunger assembly from each housing
   (2).
2. Remove retainers (4), springs (5) and (6) and
   retainers (7) from the valve housing.
3. Remove O-ring seal (3) from each housing (2).

1. Remove valve group (8) from the valve housing.
   Remove the plug, seat, ball, two rings and two
   seals from the valve housing.
2. Remove spool (9) from the valve housing.

34
7. Remove plug (10), spring (12) and valve (13)
from the valve housing. Remove O-ring seal (11)
from plug (10).

• 8. Remove plugs (14), springs (16) and valves
  (17) from the valve housing. Remove O-ring seal
• (15) from each plug (14).
• NOTE The following steps are for the assembly of
  the swing control valve.
• Make sure all parts of the swing control valve
  are thoroughly clean prior to assembly. Put clean
  hydraulic oil all internal components during
  assembly.
• Check the condition of all O-ring seals used in
  the swing control valve. If any of the seals are
  worn or damaged, use new parts for replacement.
• Assemble the swing control valve in the reverse
  order of disassembly. Tighten the plug for valve
  group (8) to a torque of 25 5 Nm (18 4 lb
  ft).
• If the plunger assemblies from housings (2) were
  removed, reinstall them. Tighten the plunger
  assemblies to a torque of 15 5 Nm (11 4 lb
  ft).

35
https//www.aservicemanualpdf.com/ My Dear
Friend! Thank you very much for visiting. Full
manual if required, please enter the following
URL into your browser. https//www.aservicemanual
pdf.com/