CASE 752EX Vibratory Compactor Service Repair Manual Instant Download

1
752EX Vibratory Compactor
SERVICE MANUAL
Part number 48174560 English April 2018 2018
CNH Construction Equipment (India) Pvt Ltd. All
rights reserved.
2
Contents INTRODUCTION Machine completion and
equipment ........................................
...... 05 05.102 Machine completion . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . 05.1 Engine.....................
..................................................
................ 10 10.001 Engine and
crankcase . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . 10.1 10.202 Air
cleaners and lines . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . .
10.2 10.254 Intake and exhaust manifolds and
muffler . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . 10.3
10.400 Engine cooling system . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . .
. . 10.4 10.310 Aftercooler. . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . 10.5 10.216 Fuel
tanks . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . .
. . 10.6 Hydrostatic drive.......................
..................................................
29 29.218 Pump and motor components. . . .
. . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . .
29.1 Hydraulic systems...........................
............................................
35 35.000 Hydraulic systems. . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . 35.1 35.300 Reservoir, cooler, and
filters. . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . 35.2 Frames and ballasting
..................................................
............... 39 39.100 Frame . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . .
39.1 39.500 Vibratory roller. . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . 39.2 Steering.................
..................................................
.................. 41 41.101 Steering control
. . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . 41.1 41.200
Hydraulic control components. . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . 41.2 41.206
Pump . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . 41.3 41.216 Cylinders . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . .
41.4 Electrical systems..........................
.............................................
55 55.000 Electrical system . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . 55.1 55.100 Harnesses and
connectors. . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . 55.2
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55.201 Engine starting system . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . .
. . 55.3 55.301 Alternator . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . 55.4 55.302
Battery. . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . 55.5 Platform, cab, bodywork, and
decals ...........................................
.. 90 90.AAA Platform, cab, bodywork, and
decals generic sub-group. . . . . . . . . . . . .
. . . . . . . . . . . . . 90.1
48174560 20/04/2018
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INTRODUCTION
48174560 20/04/2018 1
6
INTRODUCTION
Safety rules
Personal safety This is the safety alert symbol.
It is used to alert you to potential personal
injury hazards. Obey all safety messages that
follow this symbol to avoid possible death or
injury.
Throughout this manual you will find the signal
words DANGER, WARNING, and CAUTION followed by
special in- structions. These precautions are
intended for the personal safety of you and those
working with you. Read and understand all the
safety messages in this manual before you operate
or service the machine.
DANGER indicates a hazardous situation that, if
not avoided, will result in death or serious
injury. WARNING indicates a hazardous situation
that, if not avoided, could result in death or
serious injury. CAUTION indicates a hazardous
situation that, if not avoided, could result in
minor or moderate injury.
FAILURE TO FOLLOW DANGER, WARNING, AND CAUTION
MESSAGES COULD RESULT IN DEATH OR SERIOUS
INJURY. Machine safety NOTICE Notice indicates a
situation that, if not avoided, could result in
machine or property damage. Throughout this
manual you will find the signal word Notice
followed by special instructions to prevent
machine or property damage. The word Notice is
used to address practices not related to personal
safety. Information NOTE Note indicates
additional information that clarifies steps,
procedures, or other information in this
manual. Throughout this manual you will find the
word Note followed by additional information
about a step, procedure, or other information in
the manual. The word Note is not intended to
address personal safety or property damage.
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7

• INTRODUCTION
• Safety rules
• Carefully read the safety rules contained herein
  and follow advised precautions to avoid potential
  hazards and to safeguard your safety and personal
  integrity.
• Your safety and that of the people around you
  depends on you.
• It is essential that you understand this manual
  for a correct inspection, lubrication and repair
  of this machine. Read this manual carefully and
  check that
• You understand fully the symbols on the controls
  and the safety signs used in this manual and on
  the machine.
• You understand fully the speed, stability,
  braking and steering characteristics of the
  machine. If you are in any doubt, consult your
  Dealer.
• The safety messages in this section concern
  situations which may arise during normal machine
  operation, servicing and repair. These safety
  messages also indicate the different ways of
  coping with these situations. Other safety
  messages are used throughout the manual to
  indicate specific dangers.
• The information given in this chapter is a
  summary of the basic rules to respect at all
  times and does not exempt you from observing
  traffic regulations or the requirements of
  insurance companies.
• The presence of grease, oil, mud or (in winter)
  ice on the steps and access handles can cause
  accidents. Make sure they are always clean.
• When mounting or dismounting from the machine
  always face the machine and use the steps and
  access handles on the left-hand side of the
  machine.

LELI12TLB0048AB 1

• Wear close fitting clothing and safety equipment
  appropriate for the job
• Safety helmet
• Safety shoes
• Heavy gloves
• Reflective clothing
• Wet weather clothing
• If the environment conditions make it necessary,
  the following personal safety equipment should be
  at hand

• Respirators (or dustproof masks)
• Ear plugs or acoustic ears protections
• Goggles with lateral shield or masks for eyes
  protection
• Do not wear rings, wristwatches, jewels,
  unbuttoned or flapping clothing such as ties,
  torn clothes, scarves, open jackets or shirts
  with open zips which could get caught into moving
  parts.

LELI12TLB0049AB 2
Any functional disorders, especially those
affecting the safety of the machine, should
therefore be rectified im- mediately.
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INTRODUCTION Make sure that you fully
understand the symbols of the safety decals
applied on the machine. Make sure that they are
always clean and perfectly legible. Be prepared
for emergencies. Always keep a first aid kit and
a fire extinguisher close at hand on the
machine. Make sure that the fire extinguisher is
serviced in accor- dance with the manufacturers
instructions.
LELI12TLB0050AB 3
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9
INTRODUCTION
Product identification
PTIL17COM0094GB 1
Hydraulic oil filters Vibration pump Travel pump
Engine Articulation Joint Front roller drum Front
travel motor Scraper Sprinkler tube Front exciter
shaft Front roller frame Elastic suspension Front
tank
1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12. 13.
14. 15. 16. 17. 18. 19. 20. 21. 22. 23. 24. 25. 26
.
Steering cylinder Hydraulic oil cooler Steering
unit Radiator Vibration motor Operators
seat Steering pump Rear tank Battery Rear exciter
shaft Rear travel motor Rear chassis Rear roller
drum
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10
SERVICE MANUAL Engine 752EX
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11
Engine - Engine and crankcase
Engine - Torque
PTIL18COM0016GB 1
Bolt Torque value
1 130 135 Nm
2 115 125 Nm
3 110 120 Nm
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Engine - Engine and crankcase Engine and
crankcase - Service instruction The S8000 series
of engine is a vertical, water cooled, direct
Injection, with rotary pump compression ignition,
4 cylinder engine. The standard direction of
rotation is anti-clockwise when looking from the
flywheel end. Cylinders are numbered ascending
from the radiator end, with first cylinder being
nearest to the cooling fan. The engine has an
integral block and crank case for rigidity and a
single piece cylinder head unit covering all
cylinders, with replaceable valve seat inserts.
Each cylinder has two valves, one inlet and one
exhaust. The valve nearest to the cooling fan is
the exhaust valve fol- lowed inlet valve. This
sequence of valves continues uniformly for all
cylinders
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13
Engine - Engine and crankcase
Engine and crankcase - Remove

• Remove the hood, see the Engine shields, hood
  latches, and trims - Remove - Hood Removal
  (90.102).
• Remove the cooling pack. See the Engine cooling
  system - Remove - Cooling pack (10.400).
• Loosen and remove the thermostat mounting hose
  con- nections and cap the openings.
• Swing the hoses clear of the engine (1).
• Disconnect the alternator connections. See the
  Alter- nator - Remove (55.301).
• Disconnect the engine oil pressure sensor
  connection.
• Loosen the clamp and remove the silencer
  assembly. See the Exhaust pipes - Remove
  (10.254)
• All the hydraulic and oil connector openings to
  be cov- ered properly to avoid entry of dust.
• Disconnect the clog indicator connection and
  remove the air filter assembly with housing and
  pipes to intake manifold. See the Air
  pre-cleaner - Exploded view (10.202)
• Disconnect all the starter connections. See the
  En- gine starter - Remove (55.201) .
• Remove the travel and vibration pumps. See the
• Pump - Remove - Travel pump (29.218).
• Lift the pump and set it aside.
• Remove the hydraulic filter assembly.
• Loosen the bolts (2) and remove the adapter (1)
  from the engine bell housing.

PTIL16TLB0324AB 1
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14
Engine - Engine and crankcase
15. Loosen the bolts (2) and remove the coupling
(1) from the flywheel.
PTIL16TLB0325AB 2
16. Disconnect the hydraulic lines (1) at the
steering pump end and cap the openings. Set the
hose aside.
PTIL14COM1364AB 3

• Disconnect the fuel hoses from the fuel tank to
  mud filter and cap them.
• Disconnect the fuel hose from filter to engine
  and to mud filter and cap them.
• Disconnect the emergency stop switch.
• Disconnect the throttle cable at the pump end and
  clear the cable from the engine.
• Connect a suitable lifting device to the engine.
• Loosen and remove the bolts (1) with washer (2).
• Loosen and remove the bolts (3) with washer (4).
• NOTE The bolt (5) is different from other bolts
  on the mounting bracket and has an additional
  alternator bracket spacer (6). Put an
  identification tag on the bolt and make sure to
  install the bolt in same location while mounting
  the engine.

PTIL18COM0019AA 4
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15

• Engine - Engine and crankcase
• Lift the engine slowly.
• Clear any cables or wires that may be in the way.
• Lift the engine clear of the machine and mount on
  a trolley or stand.

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16
Engine - Engine and crankcase
Engine and crankcase - Install

• PTIL18COM0016GB 1
• Place the engine on the machine by using suitable
  lift- ing device.
• Tighten the mounting bolts (1) with washer (2) to
  a torque of 115 125 Nm.
• Tighten the mounting bolts (3) with washers (4)
  and (5)
• to a torque of 110 120 Nm.

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17
Engine - Engine and crankcase 4. Torque the
mounting bolt (6) to 115 125 Nm. NOTE The
mounting bolt (6) is different from other mount-
ing bolts on the same bracket and has additional
alternator bracket spacer (7).
PTIL18COM0019AA 2

• NOTE Apply anabond 121 E on bolts (2) and (4)
  threads from approximately middle of thread
  length up to end of thread length. Allow minimum
  6 h of curing time before applying the dynamic
  load on bolts. Before applying anabond, clean the
  bolt and corresponding thread hole so that it
  should be free from oil and dirt.
• Install the throttle cable at the pump end and
  install the cable to the engine.
• Install the emergency stop switch.
• Install the fuel hose from filter to engine and
  to mud filter.
• Install the fuel hoses from the fuel tank to mud
  filter.
• Clean the hose and connect the hydraulic lines
  (1) at the steering pump and cap opening.

PTIL14COM1364AB 3
10. Install the coupling (1) on to the flywheel.
Install the washer and tighten the bolts (2) to a
torque of 5 kgm.
PTIL16TLB0325AB 4
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18
Engine - Engine and crankcase
11. Install the adapter (1) on to the engine bell
housing and tighten the bolts (2) to a torque of
6.3 kgm.
PTIL16TLB0324AB 5

• Install the hydraulic filter assembly.
• Install the travel and vibration pumps.
• Install all the starter connections.
• starter - Install (55.201)

Refer Engine

1. Install the air filter assembly with housing and
   pipes to intake manifold and connect the clog
   indicator con- nection.
2. Remove the cover from hydraulic and oil connector
   openings assembly.
3. Install the silencer assembly and tighten the
   clamp.
4. Install the engine oil pressure sensor
   connection.
5. Install the alternator connections. Refer
   Alternator - Install (55.301)
6. Install the thermostat mounting hose connections
   and cap openings.
7. Install the cooling pack and hood.

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19
Engine - Engine and crankcase
Engine and crankcase - Disassemble - Top Engine

1. Disconnect the battery and store it in a dry
   place.
2. Remove the radiator fan.
3. Disconnect wiring from the alternator.
4. Remove fan belt. Discard if it is damaged.
5. Remove the alternator (1) from the engine.

PTIL16TLB0326AB 1

• Drain out water from the radiator.
• NOTE If coolant is used, collect it in a
  container and use again.
• Drain the lubricating oil from the sump and
  discard the O-ring from the drain plug.
• Disconnect the radiator from the engine and
  discard the old hoses.
• Disconnect the air cleaner and hose assembly from
  the bracket and inlet manifold. Discard the
  hose if it is cracked or damaged.
• Disconnect the exhaust pipe from the exhaust
  flange.
• Follow the procedure on turbocharger,
• Disconnect the rubber hose (1) connecting the air
  cleaner to the turbocharger.
• Disconnect the air delivery pipe with the heat
  shield from the turbocharger air outlet and air
  inlet mani- fold.
• Disconnect the exhaust pipe (1) from the tur-
  bocharger expansion bellow flange and discard
  the joint.
• Disconnect and remove the exhaust diffuser from
  the bracket.

PTIL16TLB0333AB 2
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Engine - Engine and crankcase
5. Disconnect the lubrication oil inlet (1) and
drain pipe from the turbocharger.
PTIL14COM1301AB 3
PTIL14COM1357AA 4
6. Disconnect the turbocharger from the exhaust
man- ifold and discard the joint.
48174560 20/04/2018 10.1 10.001 / 12
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