Caterpillar Cat 558 EXCAVATOR (Prefix LRT) Service Repair Manual (LRT00001 and up)

1
Shutdown SIS
Previous Screen
Product EXCAVATOR Model 558 EXCAVATOR
LRT Configuration 558 Log Loader Forest Machine
LRT00001-UP (MACHINE) POWERED BY C7.1 Engine
Disassembly and Assembly 558 Forestry Machine
Machine Systems Media Number -M0078237-00 Publicat
ion Date -01/12/2017
Date Updated -06/12/2017
i01801707
Swing Drive - Disassemble SMCS -
5459-015 Disassembly Procedure Table 1
Required Tools Required Tools Required Tools Required Tools
Tool Part Number Part Description Qty
A 1P-2420 Transmission Repair Stand 1
B 138-7574 Link Bracket 2
C 5P-5197 Retaining Ring Pliers 1
C 1U-8759 Tip Set 1
D 1P-0510 Driver Gp 1
Start By A. Remove the swing drive. Refer to
Disassembly and Assembly, "Swing Drive - Remove
and Install". Note The disassembly procedure is
identical for both swing drives. NOTICE Care
must be taken to ensure that fluids are contained
during performance of inspection, maintenance,
testing, adjusting and repair of the product. Be
prepared to collect the fluid with suitable
containers before opening any compartment or
disassembling any component containing fluids.
2
Refer to Special Publication, NENG2500,
"Caterpillar Tools and Shop Products Guide" for
tools and supplies suitable to collect and
contain fluids on Caterpillar products. Dispose
of all fluids according to local regulations and
mandates.

• Illustration 1 g00869217
• Use a suitable device and a hoist to place the
  swing drive on Tooling (A). The weight of the
  swing drive is approximately 510 kg (1125 lb).
• Open the drain valve, and drain the oil from the
  swing drive into a suitable container for
  storage or disposal. The capacity of the swing
  drive is 19 L (5 US gal). If necessary, remove
  the drain valve from the swing drive housing.

Illustration 2
g00869266
3. Remove bolts (1) from cover (2) .
3
Illustration 3 g00869281 4. Remove sun gear (3)
from carrier assembly (4) .

• Illustration 4 g00869294
• Remove spacer (5) from carrier assembly (4) .
• Use two people to remove carrier assembly (4)
  from the swing drive. The weight of the carrier
  assembly is approximately 36 kg (80 lb).
• Disassemble carrier assembly (4) .

4
Illustration 5 g00869309 a. Use a hammer and a
punch to drive spring pin (6) into planetary
shaft (7) .

• Illustration 6 g00869315
• Remove planetary shaft (7), thrust washer (8),
  thrust washer (11), and planetary gear
• (9) from the carrier.
• Remove bearing (10) from planetary gear (9) .
• Use a hammer and a punch in order to remove
  spring pin (6) from the planetary shaft
• (7) .
• Repeat Steps 7.a through 7.d in order to remove
  the other three planetary gears from the carrier
  assembly.

• Illustration 7 g00869377
• Use a screwdriver in order to remove upper
  retaining ring (12) from sun gear (13) .
• Remove sun gear (13) from carrier assembly (4) .

5
Illustration 8 g00869383 10. Remove retaining
ring (14) from the sun gear.
Illustration 9 g00869390 11. Use Tooling (B) and
a hoist to remove ring gear (15) from swing drive
housing (16). The weight of the ring gear is
approximately 80 kg (175 lb).
Illustration 10
g00869406
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
12. Remove spacer (17) from carrier assembly (18)
.
Illustration 11 g00869460 13. Use two
screwdrivers to remove retaining ring (19) .

• Illustration 12 g00869464
• Use a hoist and a lifting sling to remove carrier
  assembly (20). The weight of the carrier
  assembly is approximately 68 kg (150 lb).
• Disassemble carrier assembly (20) .

8
Illustration 13 g00869477 a. Use a hammer and a
punch to drive spring pin (21) into planetary
shaft (22) .

• Illustration 14 g00869483
• Remove planetary shaft (22), thrust washer (23),
  thrust washer (27), and planetary gear (25) from
  the carrier.
• Remove bearing (24) and (26) from planetary gear
  (25) .
• Use a hammer and a punch to remove spring pin
  (21) from planetary shaft (22) .
• Repeat Steps 15.a through 15.d in order to remove
  the other three planetary gears from the carrier
  assembly.

9
Illustration 15 g00869500 16. Use Tooling (C) to
remove retaining ring (28) .
Illustration 16 g00869545 17. Place swing drive
housing (16) sideways. Remove two bolts (30) from
bearing cage (29) .
Illustration 17
g00869554
10
18. Put swing drive housing (16) in a press. The
combined weight of the swing drive housing, the
pinion shaft, and the bearing cage is
approximately 300 kg (660 lb).

• Illustration 18 g00869551
• Place two Steel Supports (d) under the face of
  bearing cage (29) .
• Place a wood block directly under the pinion
  shaft (31). This will prevent the pinion shaft
  from falling, while the shaft is pressed out of
  the swing drive housing.
• Note Use care when components are pushed from
  the swing drive housing. Avoid injury to
  personnel. Also, avoid damage to components.
• Push pinion shaft (31) from the swing drive
  housing. The weight of the pinion shaft is
  approximately 77 kg (170 lb).
• Remove the swing drive housing and the pinion
  shaft from the press. The weight of the swing
  drive housing is approximately 222 kg (490 lb).
  The weight of the pinion shaft is approximately
  77 kg (170 lb).

Illustration 19 g00869569 23. Place swing drive
housing (16) sideways. Remove the remaining six
bolts (30) from the swing drive. Remove bearing
cage (29) from the swing drive.
11
Illustration 20 g00869899 24. Remove two lip
type seals (32) and O-ring seal (33) from bearing
cage (29) .
Illustration 21
g00869650
Illustration 22
g00869654
12
Note Use care when the components are pushed
from the swing drive housing. Avoid injury to
personnel. Also, avoid damage to components. 25.
Place swing drive (16) in a press. Use Tooling
(D) to push bearing (34), spacer (35), and
bearing (36) from the swing drive. The weight of
the swing drive is approximately 150 kg (330
lb). The weight of bearing (34) is approximately
11 kg (25 lb). The weight of spacer (35) is
approximately 4 kg (8 lb). The weight of bearing
(36) is approximately 35 kg (77 lb).
Copyright 1993 - 2021 Caterpillar Inc. All
Rights Reserved. Private Network For SIS
Licensees.
Tue Feb 2 223520 UTC0800 2021
13
Shutdown SIS
Previous Screen
Product EXCAVATOR Model 558 EXCAVATOR
LRT Configuration 558 Log Loader Forest Machine
LRT00001-UP (MACHINE) POWERED BY C7.1 Engine
Disassembly and Assembly 558 Forestry Machine
Machine Systems Media Number -M0078237-00 Publicat
ion Date -01/12/2017
Date Updated -06/12/2017
i02406626
Swing Drive - Assemble SMCS - 5459-016 Assembly
Procedure Table 1
Required Tools Required Tools Required Tools Required Tools
Tool Part Number Part Description Qty
A 138-7574 Link Bracket 2
B 1P-2420 Transmission Repair Stand 1
C 5P-5197 Retaining ring pliers 1
C 1U-8759 Tip Set 1
D 1P-0510 Drive Group 1
E 1U-6396 O-Ring Assembly Compound 1
F 5P-3931 Anti-Seize Compound 1
G 5P-0960 Grease Cartridge 1
H 9S-3263 Thread Lock Compound 1
J 1U-8846 Gasket Sealant 1
Note Cleanliness is an important factor. Before
assembly, all parts should be thoroughly cleaned
in cleaning fluid. Allow the parts to air dry.
Wiping cloths or rags should not be used to dry
parts. Lint may be deposited on the parts which
may cause later trouble. Inspect all parts. If
any parts are worn or damaged, use new parts for
replacement. All disassembly and all assembly
procedures must be performed on a clean work
surface and in a clean hydraulic area. Keep
cleaned parts covered and protected at all times.
14
Note O-rings, gaskets, and seals should always
be replaced. A used O-ring may not have the same
sealing properties as a new O-ring. Use Tooling
(E) during the assembly procedure. NOTICE Care
must be taken to ensure that fluids are contained
during performance of inspection, maintenance,
testing, adjusting, and repair of the product.
Be prepared to collect the fluid with suitable
containers before opening any compartment or
disassembling any component containing
fluids. Refer to Special Publication, NENG2500,
"Dealer Service Tool Catalog" for tools and
supplies suitable to collect and contain fluids
on Cat products. Dispose of all fluids according
to local regulations and mandates.
1. Make sure that all parts of the swing drive
are thoroughly clean and free of dirt and debris
prior to assembly.

• Illustration 1 g00725394
• ApplyTooling (F) on the outside diameter of
  bearing (37) and the inside diameter of swing
  drive housing (19).
• Lower the temperature of bearing (37). Install
  bearing (37) in the swing drive housing. It may
  be necessary to use a hammer and a punch to
  properly seat the bearing in the swing drive
  housing.

15

• Illustration 2 g00725388
• Install O-ring seal (35) into bearing cage (31).
• Install lip seals (34) in bearing cage (31).
• ApplyTooling (G) on the lip of each seal.

Illustration 3 g00725547 7. Carefully install
cage (31) over pinion shaft (33).
Illustration 4 g00725554 8. Raise the
temperature of bearing (39) and install bearing
(39) on pinion shaft (33).
16
Illustration 5 g00725572 9. Install spacer (38)
on top of bearing assembly (37), as shown. Note
Lip (e) for spacer (38) must face opposite
bearing assembly (37), as shown.

• Illustration 6 g00725575
• Put swing drive housing (19) in a suitable press.
• Apply Tooling (F) on the outside diameter of
  bearing assembly (39) and the inside diameter of
  the swing drive housing.
• Install pinion shaft (33), bearing cage (31),
  bearing assembly (39), through spacer (38) and
  bearing (37).
• Note It may be necessary to reposition the press
  so that bearing assembly (39) is installed
  evenly into the swing drive housing.
• Note Align bearing cage (31) with the swing
  drive housing during installation of the pinion
  shaft. Temporarily install bolts that will hold
  bearing cage (31) to the swing drive housing.

17

• Illustration 7 g00725595
• Remove the swing drive from a suitable press and
  place the swing drive sideways. The combined
  weight of the swing drive housing, the pinion
  shaft, and the bearing cage is approximately 152
  kg (335 lb).
• Remove the temporary bolts that are holding the
  bearing cage in position.
• ApplyTooling (H) on the threads of bolts (32)
  that hold bearing cage (31) to swing drive
  housing (19).
• Tighten bolts (32) to a torque of 100 20 Nm
  (75 15 lb ft).

Illustration 8 g00725607 17. Raise the
temperature of bearing inner race (36) and
install bearing inner race (36) on the pinion
shaft (33). Note Make sure that the shaft is
centered in the swing drive housing, before you
install bearing inner race (36).
18

• Illustration 9 g00725270
• Use Tooling (C) to install retaining ring (30).
• Assemble the carrier assembly (21), as follows

• Illustration 10 g00725260
• Apply clean SAE 30W oil on bearing (26) and
  bearing (28). Install bearings (26) and
• (28) into planetary gear (27).
• Install thrust washer (25) on one side of
  planetary gear (27).
• Install thrust washer (29) on the other side of
  planetary gear (27).
• Use a deburring tool in order to remove the metal
  burr from the openings in the carrier.
• Install planetary gear (27) and the thrust
  washers in the carrier assembly (21).

19
Illustration 11 g00725252 f. Install planetary
shaft (24) through the gear assembly into the
carrier assembly. Make sure that the spring pin
hole in the planetary shaft is in alignment with
the spring pin hole in the carrier.
Illustration 12 g00703700 g. Drive spring pin
(23) into planetary shaft (24). Orient the split
in spring pin (23) vertically to the carrier.
Align the split in the spring pin to the top or
to the bottom. Make a stake mark on each side of
the spring pin hole in the carrier. Each stake
mark should be approximately 2.25 0.75 mm
(0.090 0.030 inch) from the outside diameter
of the spring pin hole. h. Repeat Steps 19.a
through 19.g in order to install the other three
planetary gears (27) in the carrier assembly.
20
Illustration 13 g00725203 20. Use two persons
and install carrier assembly (21) into the
housing. The weight of carrier assembly (21) is
approximately 40 kg (88 lb).
Illustration 14
g00725194
21. Install retaining ring (22).
Illustration 15 g00725186 22. Install spacer
(20) into carrier assembly (21).
21

• Illustration 16 g00725166
• Make sure that the mating surfaces of ring gear
  (18) and swing drive housing (19) are thoroughly
  clean.
• Apply Tooling (J) to the face of swing drive
  housing (19) and the face of ring gear (18).
• Install Tooling (A) onto ring gear (18). The
  weight of ring gear (18) is approximately 36 kg
  (80 lb).
• Install ring gear (18) onto the swing drive
  housing (19).

Illustration 17 g00725145 27. Install retaining
ring (17) into the sun gear.
22

• Illustration 18 g00724866
• Install carrier assembly (7) into the sun gear.
  Install retaining ring (15) into sun gear (16).
• Assemble carrier assembly (7), as follows

• Illustration 19 g00724862
• Apply clean SAE 30W oil on bearing (13). Install
  bearing (13) in planetary gear (12).
• Install a thrust washer (11) on one side of
  planetary gear (12).
• Install a thrust washer (14) on the other side of
  planetary gear (12).
• Use a deburring tool in order to remove the metal
  burr from the openings in the carrier.
• Install planetary gear (12) and the thrust
  washers in the carrier assembly (7).

Illustration 20 g00724860 f. Install planetary
shaft (10) through the gear assembly into the
carrier assembly. Make sure that the spring pin
hole in the planetary shaft is in alignment with
the spring pin hole in the carrier.
23
Illustration 21 g00703700 g. Drive spring pin
(9) into planetary shaft (10). Orient the split
in spring pin (9) vertically to the carrier.
Align the split in the spring pin to the top or
to the bottom. Make a stake mark on each side of
the spring pin hole in the carrier. Each stake
mark should be approximately 2.25 0.75 mm
(0.09 0.03 inch) from the outside diameter of
the spring pin hole. h. Repeat Steps 29.a through
29.g for the remaining gear assemblies.

• Illustration 22 g00724856
• Install carrier assembly (7) in the ring gear.
• Install spacer (8) into carrier assembly (7).

24
Illustration 23 g00724854 32. Install sun gear
(6) into carrier assembly (7).

• Illustration 24 g00724840
• Make sure that the mating surfaces of the ring
  gear and cover (5) are thoroughly clean.
• Apply on the flange surface of the ring gear and
  cover (5).
• Fasten Tooling (A) and a suitable lifting device
  to cover (5). Put the cover in the original
  position on the ring gear. Make sure that the
  cover is seated properly.

Illustration 25
g00724843
25

1. ApplyTooling (H) on the threads of bolts (4).
2. Install the washers and bolts (4) that hold the
   cover, the ring gear, and the swing drive
   housing together. Tighten bolts (4) to a torque
   of 270 40 Nm (200 30 lb ft).
3. Install fitting (3) into cover (5).

• Illustration 26 g00724832
• Install oil level gauge (Dipstick) (1), filler
  breather cap assembly, and hose assembly (2) to
  the swing drive.
• If the drain valve was removed from the swing
  drive housing, reinstall the drain valve.
• End By
• a. Install the swing drive. Refer to Disassembly
  and Assembly, "Swing Drive - Install".

Copyright 1993 - 2021 Caterpillar Inc. All
Rights Reserved. Private Network For SIS
Licensees.
Tue Feb 2 223616 UTC0800 2021
26
Shutdown SIS
Previous Screen
Product EXCAVATOR Model 558 EXCAVATOR
LRT Configuration 558 Log Loader Forest Machine
LRT00001-UP (MACHINE) POWERED BY C7.1 Engine
Disassembly and Assembly 558 Forestry Machine
Machine Systems Media Number -M0078237-00 Publicat
ion Date -01/12/2017
Date Updated -06/12/2017
i07034505
Swing Gear and Bearing - Remove and Install SMCS
- 7063-010 Removal Procedure Table 1
Required Tools Required Tools Required Tools Required Tools
Tool Part Number Part Description Qty
A 138-7576 Link Brackets 4
B 132-8223 Hydraulic Pump and Motor Gp (115 V 50/60 Hz Single Phase) (1) 1
B 1U-6221 Hydraulic Torque Wrench Gp 1
B 132-8143 Wrench Link (36-MM LOW CLEARANCE HEX) 1
C - Loctite 380 Black Max -
D 1P-0808 Multipurpose Grease -
E - Loctite 17430 -
F 5P-3931 Anti-Seize Compound -
(1) 132-8231 Hydraulic Pump and Motor Gp (220 V
50/60 Hz Single Phase) is also available. Start
By a. Remove the undercarriage frame. 1. Remove
all the grease from the swing gear and bearing.
Put the grease in a suitable container for
storage or disposal.
27
Illustration 1 g00520664 2. Put an alignment
mark on swing gear and bearing (1) and on the
undercarriage frame assembly for assembly
purposes. Attach Tooling (A) and a suitable
lifting device to swing gear and bearing (1), as
shown. Apply slight lifting tension to swing gear
and bearing (1).

• Illustration 2 g00520670
• Use Tooling (B) to remove bolts (2) and the
  spacers that hold swing gear and bearing (1) to
  the undercarriage frame.
• Remove swing gear and bearing (1). The weight of
  swing gear and bearing (1) is approximately 640
  kg (1410 lb).

28
Please write to us. Our email
aservicemanualpdf_at_yahoo.com Please go to the
homepage to get the full manual, or other brand
PDF manuals. Home Site aservicemanualpdf.com
29
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/
30

• Illustration 3 g02128394
• Note Inner dust seal (3) and outer dust seal (4)
  may have been installed dry and bonded to the
  swing gear and bearing.
• Remove inner dust seal (3) and outer dust seal
  (4) from the swing gear and bearing.
• Clean the seal grooves of the inner dust seal and
  the outer dust seal with a fine grit sandpaper.
  Use a cleaning solvent to clean the sealing
  grooves. Make sure that the seal grooves are
  thoroughly clean and dry prior to installing the
  new dust seals.
• Installation Procedure
• 1. Install swing gear and bearing (1) in the
  reverse order of removal.

31

• Illustration 4 g02128394
• a. Use the following procedure to install the new
  inner dust seal (3) and the new outer dust seal
  (4)
• Use a wire brush to clean the grooves for the
  dust seal of the swing gear and bearing. Make
  sure that all the dirt and foreign material has
  been removed.
• Wash the grooves for the dust seal in a suitable
  solvent that will not leave an oily residue.
• The grooves for the dust seal in the swing gear
  and bearing must be clean and dry prior to
  installation of the dust seal.
• Cut one end of inner dust seal (3) at a 90 degree
  angle. Use a blunt tool to install the inner
  dust seal in the seal groove of the swing gear
  and bearing.
• Install the seal so that the lip of the seal is
  facing in the direction that is shown.

32

1. Measure and cut the end of the inner dust seal at
   a 90 degree angle. Install the remaining end of
   the inner dust seal in the seal groove.
2. Make sure that the inner dust seal is seated
   properly in the seal groove, all the way around
   the swing gear and bearing. Also, make sure that
   there is no gap between the ends of the inner
   dust seal.
3. Pull each end of the inner dust seal out of the
   seal groove of the swing gear and bearing
   approximately 50.8 mm (2.00 inch). Apply Tooling
   (C) to each end of the inner dust seal to bond
   the seals together.
4. Immediately reinstall the inner dust seal in the
   seal groove of the swing gear and bearing.
   Again, make sure that the entire inner dust seal
   is properly seated in the seal groove of the
   swing gear and bearing. No gap should exist
   between the ends of the inner dust seal.
5. Ensure that the lip of inner dust seal has not
   adhered to the top of the bearing.
6. Follow the procedure in Steps 1.a through 1.j to
   install outer dust seal (4) in the swing gear
   and bearing. Refer to Illustration 4 for proper
   seal orientation in the swing gear and bearing.
7. Lubricate the swing gear and bearing with grease.

Illustration 5
g00520664
33
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/