CASE CONSTRUCTION CX470B User manual

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CX470B
Crawler Excavator
SERVICE MANUAL
Crawler Excavator
CX470B
Part number 48004716
English
March 2016
© 2016 CNH Industrial Italia S.p.A. All Rights Reserved.
SERVICE MANUAL
Part number 47985408

Copyright © 2016 CNH France S.A.
Printed in France
CNH March 2016
CRAWLER EXCAVATOR CX470B
SERVICE MANUAL
TABLE OF CONTENTS
DIVISION/SECTION SECTION N°
1 GENERAL INFORMATION
Safety, general information and standard torque data........................................................................................1001
General specifications and special torque setting ..............................................................................................1002
2ENGINE
Removal and installation of the engine...............................................................................................................2000
Removal and installation of the fuel cooler, engine inter-cooler,
radiator and oil cooler.........................................................................................................................................2001
Removal and installation of the turbo charger ....................................................................................................2004
Removal and installation of EGR cooler and EGR valve....................................................................................2005
Removal and installation of the engine hood......................................................................................................2006
Engine specifications................................................................................................................................................ *
Disassembly and assembly of the engine ................................................................................................................ *
3 FUEL SYSTEM
Removal and installation of the fuel tank............................................................................................................3001
Removal and installation of the supply pump and common rail .........................................................................3004
Removal and installation of the injectors ............................................................................................................3005
Fuel engine system .................................................................................................................................................. *
4 ELECTRICAL SYSTEM
Service connector kit ..........................................................................................................................................4000
Electrical and engine functions and service support..........................................................................................4001
Removal and installation of the starter motor.....................................................................................................4004
Removal and installation of the alternator ..........................................................................................................4005
Electrical equipment & electrical circuit diagrams ..............................................................................................4020
Engine error code (DTC) ....................................................................................................................................4021
Main body error code (DTC)...............................................................................................................................4022
Troubleshooting, 6UZ1 engine............................................................................................................................4023
5 UNDERCARRIAGE
Removal and installation of tracks......................................................................................................................5001
Rollers ................................................................................................................................................................5003
Take-up roller......................................................................................................................................................5005
6 DRIVE TRAIN
Removal and installation of the drive motor and
final drive transmission...................................................................................................................................6001
Disassembly and assembly of the drive motor and
final drive transmission...................................................................................................................................6002
Removal and installation of the swing motor and
swing reduction gear ......................................................................................................................................6003
Disassembly and assembly of the swing reduction gear ....................................................................................6004
7 UNDERCARRIAGE HYDRAULICS
* Consult the Engine Service Manual

Issued 03-2016
DIVISION/SECTION SECTION N°
8 UPPERSTRUCTURE HYDRAULICS
Specifications, troubleshooting, checks and
hydraulic pressure settings............................................................................................................................ 8001
Removal and installation of the hydraulic reservoir ........................................................................................... 8002
Removal and installation of the main hydraulic pump........................................................................................ 8003
Removal and installation of the main hydraulic control valve............................................................................. 8004
Removal and installation of the attachment cylinders........................................................................................ 8005
Removal and installation of the hydraulic swivel................................................................................................ 8006
Removal and installation of the pilot blocs......................................................................................................... 8007
Disassembly and assembly of the main hydraulic pump ................................................................................... 8010
Disassembly and assembly of the main hydraulic control valve ........................................................................ 8011
Disassembly and assembly of the attachment cylinders ................................................................................... 8012
Disassembly and assembly of the hand control levers ...................................................................................... 8013
Disassembly and assembly of the foot control levers ........................................................................................ 8014
Disassembly and assembly of the cushion valve............................................................................................... 8016
Removal and installation of the safety valve...................................................................................................... 8017
Disassembly and assembly of the swing motor ................................................................................................. 8019
Hydraulic functions ............................................................................................................................................ 8020
Hydraulic component functions.......................................................................................................................... 8030
9 UPPERSTRUCTURE
Removal and installation of the counterweight .................................................................................................. 9002
Removal and installation of the boom, dipper and bucket ................................................................................. 9003
Removal and installation of the seat.................................................................................................................. 9004
Removal and installation of the cab and cab equipment ................................................................................... 9005
Air conditioner functions and troubleshooting.................................................................................................... 9006
Air conditioning unit ........................................................................................................................................... 9007
Air conditioning components.............................................................................................................................. 9009
Large size hydraulic schematics ......................................................................................................................Pocket
Large size electrical schematics......................................................................................................................Pocket
* For electrical schematic option, see section 4020
NOTE: CNH Industrial reserves the right to make changes in the specification and design of the machine
without prior notice and without incurring any obligation to modify units previously sold.
The description of the models shown in this manual has been made in accordance with the technical speci-
fications known as of the date of design of this document.

CNH
1001
SAFETY, GENERAL INFORMATION
AND TORQUE SPECIFICATIONS
Section
1001

Issued 03-16
1001-3
GENERAL INFORMATION
Cleaning
Clean all metal parts except bearings, in a suitable
cleaning solvent or by steam cleaning. Do not use
caustic soda for steam cleaning. After cleaning, dry and
put oil on all parts. Clean oil passages with com-
pressed air. Clean bearings in a suitable cleaning sol-
vent, dry the bearings completely and put oil on the
bearings.
Inspection
Check all parts when the parts are disassembled.
Replace all parts that have wear or damage. Small
scoring or grooves can be removed with a hone or cro-
cus cloth. Complete a visual inspection for indications
of wear, pitting and the replacement of parts necessary
to prevent early failures.
Bearings
Check bearings for easy action. If bearings have a
loose fit or rough action replace the bearing. Wash
bearings with a suitable cleaning solvent and permit to
air dry. DO NOT DRY BEARINGS WITH COM-
PRESSED AIR.
Needle bearings
Before you press needle bearings in a bore always
remove any metal protrusions in the bore or edge of the
bore. Before you press bearings into position put petro-
leum jelly on the inside and outside diameter of the
bearings.
Gears
Check all gears for wear and damage. Replace gears
that have wear or damage.
Oil seals, O-rings and gasket
Always install new oil seals, O-rings and gaskets. Put
petroleum jelly on seals and O-rings.
Shafts
Check all shafts that have wear or damage. Check the
bearing and oil seal surfaces of the shafts for damage.
Service parts
Always install genuine Case service parts. When order-
ing refer to the Parts Catalog for the correct part
number of the genuine Case replacement items. Fail-
ures due to the use of other than genuine Case
replacement parts are not covered by warranty.
Lubrication
Only use the oils and lubricants specified in the Opera-
tor’s or Service Manuals. Failures due to the use of
non-specified oils and lubricants are not covered by
warranty.

Issued 03-16
1001-4
SAFETY
To prevent injury always follow the Warning, Caution
and Danger notes in this section and throughout the
manual.
Put the warning tag shown below on the key for the key-
switch when servicing or repairing the machine. One
warning tag is supplied with each machine. Additional
tags Part Number 331-4614 are available from your
service parts supplier.
This symbol means ATTENTION! BECOME ALERT! YOUR
SAFETY IS INVOLVED. The message that follows the symbol
contains important information about safety. Carefully read the
message. Make sure you fully understand the causes of pos-
sible injury or death.
!
WARNING: Read the operator’s manual to
familiarize yourself with the correct control
functions.
WARNING: Operate the machine and
equipment controls from te seat position only.
Any other method could result in serious injury.
WARNING: This is a one man machine, no
riders allowed.
!
!
!
WARNING: Before starting engine, study
Operator’s Manual safety messages. Read all
safety signs on machine. Clear the area of
other persons. Learn and practice safe use of
controls before operating.
It is your responsibility to understand and
follow manufacturers instructions on machine
operation, service and to observe pertinent
laws and regulations. Operator’s and Service
Manuals may be obtained from your Case
dealer.
WARNING: If you wear clothing that is too
loose or do not use the correct safety
equipment for your job, you can be injured.
Always wear clothing that will not catch on
objects. Extra safety equipment that can be
required includes hard hat, safety shoes, ear
protection, eye or face protection, heavy
gloves and reflector clothing.
WARNING: When working in the area of the
fan belt with the engine running, avoid loose
clothing if possible, and use extreme caution.
WARNING: When doing checks and tests on
the equipment hydraulics, follow the
procedures as they are written. DO NOT
change the procedure.
WARNING: When putting the hydraulic
cylinders on this machine through the
necessary cycles to check operation or to
remove air from a circuit, make sure all people
are out of the way.
!
!
!
!
!

Issued 03-16
1001-5
WARNING: Use insulated gloves or mittens
when working with hot parts.
WARNING: Lower all attachments to the
ground or use stands to safely support the
attachments before you do any maintenance
or service.
WARNING: Pin sized and smaller streams of
hydraulic oil under pressure can penetrate the
skin and result in serious infection. If hydraulic
oil under pressure does penetrate the skin,
seek medical treatment immediately. Maintain
all hoses and tubes in good condition. Make
sure all connections are tight. Make a
replacement of any tube or hose that is
damaged or thought to be damaged. DO NOT
use your hand to check for leaks, use a piece
of cardboard or wood.
WARNING: When removing hardened pins
such as a pivot pin, or a hardened shaft, use a
soft head (brass or bronze) hammer or use a
driver made from brass or bronze and a steel
head hammer.
WARNING: When using a hammer to remove
and install pivot pins or separate parts using
compressed air or using a grinder, wear eye
protection that completely encloses the eyes
(approved goggles or other approved eye
protectors).
WARNING: Use suitable floor (service) jacks
or chain hoist to raise wheels or tracks off the
floor. Always block machine in place with
suitable safety stands.
!
!
!
!
!
!
WARNING: When servicing or repairing the
machine, keep the shop floor and operator’s
compartment and steps free of oil, water,
grease, tools, etc. Use an oil absorbing
material and/or shop cloths as required. Use
safe practices at all times.
WARNING: Some components of this
machine are very heavy. Use suitable lifting
equipment or additional help as instructed in
this Service Manual.
WARNING: Engine exhaust fumes can cause
death. If it is necessary to start the engine in a
closed place, remove the exhaust fumes from
the area with an exhaust pipe extension. Open
the doors and get outside air into the area.
WARNING: When the battery electrolyte is
frozen, the battery can explode if (1), you try to
charge the battery, or (2), you try to jump start
and run the engine. To prevent the battery
electrolyte from freezing, try to keep the
battery at full charge. If you do not follow these
instructions, you or others in the area can be
injured.
!
!
!
!

Issued 03-16
1002-10
MAIN EQUIPMENT LAYOUT
1 Engine 8 Front idler 15 Boom cylinder
2 Radiator 9 Bucket 16 Travel motor
3 Control valve 10 Arm 17 Tool box
4 Boom 11 Hydraulic pump 18 Bucket cylinder
5 Battery 12 Hydraulic oil tank 19 Air conditioner condenser
6 Air cleaner 13 Fuel tank
7 Swing motor 14 Arm cylinder

CNH
2000
REMOVAL AND INSTALLATION OF THE ENGINE
Section
2000

Issued 03-16
2000-3
REMOVAL AND INSTALLATION OF THE ENGINE ASSEMBLY
1 Removal of the engine
Items to prepare
• Wrench set
• Box wrench set
• Shackle (with the required lifting capacity) × 2
• Wire ropes (with the required breaking load)
• Liftcrane (with the required lifting capacity)
• Marking pen
•Caps
• Plugs
• Waste oil can
•Rag
• Cleaning fluid
• Wood planks, etc.
[1] Remove the hydraulic pump.
(For details, see "Removal and Installation of
Hydraulic Pump".)
[2] Use a wrench (19 mm) to remove the 7 bolts (1),
and then remove the radiator cover (2).
[3] Use a wrench (7 mm) to loosen the hose band (3)
on the radiator, and then remove the lower hose
(4).
• Use caps to cover the radiator and hose to pre-
vent the entry of water, dust or dirt.
• Before removing the radiator hose, completely
drain the coolant.
Warning:
• Keep away from fire.
• Be sure to release hydraulic pressure before beginning work.
• The air conditioner circuit is filled with high-pressure gas, so there is the danger of
gas splaying out when loosening lines.
• Do not use open flames and do not allow sparks near the battery.
Caution:
• Be sure to stop the engine before beginning work.
• Be sure to inspect the wire rope and other lifting equipment before beginning
work.
• Do not stand or pass under the suspended load.
1
1
1
1
2
TF11006-029
4
3
TF11006-001

Issued 03-16
2000-4
[4] Use a wrench (7 mm) to loosen the hose band (5)
on the radiator, and then remove the upper hose
(6).
[5] Use a wrench to loosen the 2 line bolts (7), and
then remove the 2 compressor lines (8) and (9).
• Before removing the compressor lines, recover
the air conditioner gas.
• Always remove the low-pressure (suction side)
line (8) first.
• Attach caps or plugs to the compressor and
lines to prevent any entry of water, dust or dirt.
• The O-ring cannot be reused. Always replace it
with a new one.
[6] Use a wrench (8 mm) to loosen the hose band (10)
on the inter cooler, and then remove the hose (11).
• Use caps to cover the line and hose to prevent
the entry of water, dust or dirt.
5
6
TF11006-002
8
9
7
TF11006-003
10 11
TF11006-004

Issued 03-16
2000-5
[7] Prepare the waste oil can (12).
• Drain the engine oil before removing the engine
oil hose.
[8] Use a wrench to remove the 2 engine oil remote
hoses (13).
• Mark the engine and hoses so that the connec-
tors match at the time of assembly.
• Attach caps or plugs to the engine and hoses to
prevent any entry of water, dust or dirt.
• Clean the engine and hoses by spraying them
with a parts cleaner to prevent scratches and
prevent dirt from accumulating on the connec-
tors.
[9] Use a wrench (17 mm) to loosen the nut (14), and
then remove the battery cable (15) on the negative
side.
• When removing the terminal and harness,
secure them so that they do not interfere with
the frame.
Also, cover with a rubber cap to protect against
sparks.
[10]Use a wrench to remove the 3 nuts (16), and then
remove the starter motor wiring (17).
12
13
TF11006-005
17
16
16
16
TF11006-007

Issued 03-16
2000-6
[11]Use a wrench to remove the 1 bolt (18), and then
remove the ground wiring (19).
[12]Use a wrench to loosen the hose band (20), and
then remove the fuel hose (21).
• Attach caps or plugs to the engine and hose to
prevent any entry of water, dust or dirt.
[13]Use a wrench to loosen the hose band (22), and
then remove the fuel hose (23).
• Attach caps or plugs to the engine and hose to
prevent any entry of water, dust or dirt.
19
18
TF11006-008
20
21
TF11006-009
23 22
TF11006-010

Issued 03-16
2000-7
[14]Use a wrench to remove the 4 bolts (24), and then
remove the box cover (25).
[15]Remove the connectors (26) in the box.
• Wrap the removed connectors in plastic after
tying them together.
[16]Use a wrench (7 mm) to loosen the 2 hose bands
(27), and then remove the 2 heater hoses (28).
• Attach caps or plugs to the engine and hose to
prevent any entry of water, dust or dirt.
[17]Use a wrench to remove the 2 bolts (29).
[18]Use a wrench (7 mm) to loosen the 2 hose bands
(30), and then remove the air hose (31).
• Use caps to cover the line and hose to prevent
any entry of water, dust or dirt.
[19]Use a wrench (8 mm) to loosen the 2 hose bands
(32), and then remove the air hose (33).
• Use caps to cover the line and hose to prevent
any entry of water, dust or dirt.
24
25
24
26
TF11006-011
28
27
TF11006-012
31
30
32 33
32
29
30
TF11006-013

Issued 03-16
2000-8
[20]Remove the connector (34) from the alternator.
[21]Use a wrench (10 mm) to remove the nut (35).
[22]Use a wrench to remove the bolt (36), and then
remove the alternator wiring (37).
[23]Use a wrench to remove the 4 bolts (38), and then
remove the step (39).
[24]Install the 4 shackles (40), and then use the wire
ropes (41) and liftcrane to secure the engine main
unit.
34
35
36
37
TF11006-014
39
38
38
TF11006-015
40
41
40
TF11006-016

Issued 03-16
2000-9
[25]Use a box wrench (30 mm) to remove the 4 bolts
(42) from the mount.
[26]Use the wire ropes (41) and liftcrane to lift the
engine main unit.
[27]Thoroughly check that the location is safe before
lowering the engine on wood planks, etc.
42
42
42 42
TF11006-017
41 41
TF11006-018

Issued 03-16
2000-10
2 Installation of the engine
[1] To install the engine, perform the reverse of the removal procedure.
After installing the engine, resupply coolant and engine oil, perform fuel line air bleeding, and perform filling for the
air conditioner gas.
For details, see the individual explanations for each procedure.
[2] Run the engine at no-load idling and check for any water or oil leaks.
[3] Attach the hydraulic pump, covers, and counterweight.
For details, see the individual explanations for each procedure.

Issued 03-16
2001-3
REMOVAL AND INSTALLATION OF FUEL COOLER
Items to prepare
• Wrenches (7 mm, 12 mm)
• Screwdriver
•Pliers
• Marking pen
•Caps
• Plugs
•Rag
• Cleaning fluid
• Drip pan
1 Removal of fuel cooler
[1] Use a wrench (7 mm) to loosen the 2 hose bands
(1), and then remove the 2 hoses (2).
• Mark the fuel cooler (3) and hoses (2) so that
the connectors match at the time of assembly.
• Fuel will spill out, so place a drip pan directly
below the area.
• Attach caps or plugs to the fuel cooler and
hoses to prevent any entry of water, dust or dirt.
[2] Use a wrench (12 mm) to remove the 4 bolts (4),
and then remove the fuel cooler (3).
2 Installation the fuel cooler
Perform the reverse of the removal procedure.
[1] After connecting the hoses, carefully check for any fuel leaks.
Caution: • Be sure to stop the engine before beginning work.
• As the fuel hose will be removed, strictly prohibit open flames.
11
3
22
TF11006-030
3
4
4
4
TF11006-031

Issued 03-16
2001-4
REMOVAL AND INSTALLATION OF ENGINE INTER COOLER
Items to prepare
• Wrenches (8 mm, 14 mm)
• Flathead screwdriver
• Wire cutters
•Caps
•Rag
• Cleaning fluid
1 Removal of inter cooler
[1] Remove the fuel cooler.
(For details, see "Removal and Installation of Fuel
Cooler")
[2] Use a wrench (8 mm) or flathead screwdriver to
loosen the 2 hose bands (1), and then remove the 2
hoses (2).
• Use caps to cover the inter cooler and hoses to
prevent the entry of water, dust or dirt.
[3] Use a wrench (14 mm) to remove the 6 bolts (3),
then remove the inter cooler (4).
2 Installation of inter cooler
Perform the reverse of the removal procedure.
Check for any air leaks.
Caution: • Be sure to stop the engine before beginning work.
• As the fuel hose will be removed, strictly prohibit open flames.
11
22
TF11006-032
33
4
TF11006-033

Issued 03-16
2001-5
REMOVAL AND INSTALLATION OF RADIATOR
Items to prepare
• Wrench set
• Box wrench set
• Hexagon wrench
•Pliers
• Shackle (with the required lifting capacity) x 2
• Wire rope (with the required breaking load)
• Liftcrane (with the required lifting capacity)
•Caps
• Plugs
• Drain tank
•Drainhose
•Rag
• Cleaning fluid
• Wood planks, etc.
1 Removal of radiator
[1] Open the engine hood.
[2] Drain the hydraulic oil from the hydraulic oil tank.
(See Operator’s Manual for details of this procedure).
[3] Use a wrench (19 mm) to remove the 5 bolts (1),
and then remove the under cover (2).
Warning: • Do not remove the radiator cap when the radiator coolant temperature is high. Hot
liquid could spray out.
Caution:
• Be sure to release hydraulic pressure before beginning work.
• Be sure to stop the engine before beginning work.
• Be sure to inspect the wire rope and other lifting equipment before beginning
work.
• Do not stand or pass under the suspended load.
21
TM13006-001