PDF Service Manual Case CX330 TIER III Crawler Excavator - 7 MB
Dive deep into the mechanics of your Case CX330 TIER III Crawler Excavator with this complete service manual.
It provides factory-authorized procedures for disassembly, assembly, and repair of all major components.
Technicians will find detailed diagrams, specifications, and torque values essential for accurate and efficient work.
This manual is your go-to resource for any repair, ensuring your excavator is back in service quickly and correctly.
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--- Page 1 ---
SERVICE MANUAL
CRAWLER EXCAVATOR
CX330 TIER III
87565293 NA
Issued 05-2006
--- Page 3 ---
1001-5
WARNING: Use insulated gloves or mittens WARNING: When servicing or repairing the
! when working with hot parts. machine, keep the shop floor and operator’s
compartment and steps free of oil, water,
! grease, tools, etc. Use an oil absorbing
WARNING: Lower all attachments to the material and/or shop cloths as required. Use
ground or use stands to safely support the safe practices at all times.
! attachments before you do any maintenance
or service.
WARNING: Some components of this
machine are very heavy. Use suitable lifting
WARNING: Pin sized and smaller streams ! equipment or additional help as instructed in
of hydraulic oil under pressure can penetrate this Service Manual.
the skin and result in serious infection. If
hydraulic oil under pressure does penetrate
the skin, seek medical treatment
WARNING: Engine exhaust fumes can
immediately. Maintain all hoses and tubes in
! good condition. Make sure all connections
cause death. If it is necessary to start the
engine in a closed place, remove the exhaust
are tight. Make a replacement of any tube or
hose that is damaged or thought to be
! fumes from the area with an exhaust pipe
extension. Open the doors and get outside
damaged. DO NOT use your hand to check
air into the area.
for leaks, use a piece of cardboard or wood.
WARNING: When the battery electrolyte is
WARNING: When removing hardened pins frozen, the battery can explode if (1), you try
such as a pivot pin, or a hardened shaft, use to charge the battery, or (2), you try to jump
start and run the engine. To prevent the
! a soft head (brass or bronze) hammer or use
a driver made from brass or bronze and a
! battery electrolyte from freezing, try to keep
steel head hammer. the battery at full charge. If you do not follow
these instructions, you or others in the area
can be injured.
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.
Lep 7-27691NA Issued 02-06
--- Page 4 ---
1002-9
Cooling system
Fan type..................................................................... diameter 850 mm (33.5 in), suction type-6blades resin & steel
Pulley ratio .............................................................................................................................................80 (reduction)
Direction of rotation ............................................................................... Right (viewed from fan side); compliant with
Radiator capacity............................................................................................................................................96.0 kW
Fin type ...........................................................................................................................................................wavy
Fin space.......................................................................................................................................2.0 mm (0.08 in)
Oil cooler capacity ..........................................................................................................................................66.6 kW
Fin type .......................................................................................................................................................... Wavy
Fin space.....................................................................................................................................1.75 mm (0.07 in)
Inter-cooler capacity .......................................................................................................................................29.9 kW
Fin type ....................................................................................................................................... triangular straight
Fin space.......................................................................................................................................2.0 mm (0.08 in)
Fuel cooler capacity..........................................................................................................................................1.7 kW
Fin type ...........................................................................................................................................................wavy
Fin space.......................................................................................................................................2.0 mm (0.08 in)
Capacity of coolant and lubricants
Coolant .................................................................................................................................................30 L (7.92 gal)
Fuel......................................................................................................................................................580 L (153 gal)
Lubricant for engine .................................................................................................................................38 L (10 gal)
Lubricant for travel reduction gear (per side) .........................................................................................9.5 L (2.5 gal)
Lubricant for swing reduction gear (per side) .........................................................................................6 L (1.59 gal)
Hydraulic oil ........................................................................................................................................350 L (92.5 gal)
Capacity of hydraulic oil tank ..............................................................................................................175 L (46.2 gal)
Hydraulic oil filter
Suction filter (inside tank) ............................................................................................................................ 150 mesh
Return filter (inside tank) ..................................................................................................................................10 µ m
Nephron filter (inside housing)............................................................................................................................1 µ m
Pilot line filter (inside housing)..........................................................................................................................10 µ m
Lep 9-94170NA Issued 02-06
--- Page 5 ---
1002-19
Idler wheel
Dimensions
c Dimension
Mark
mm in
b
Standard 560 22.04
Øa
Limit 550 21.6
Standard 22.5 0.88
b
Limit --- ---
Standard 102 4.01
c
Limit 92 3.62
Standard 85 3.34
Ø d (shaft)
Limit 84 3.30
a
Standard 85 3.34
Ø d (bushing)
Limit 86 3.38
Standard 82 3.22
e f e (bushing)
Limit 81 3.18
Standard 19 0.74
f
Limit 18.6 0.73
d
000-6-10-00-08B
Gauge
Unit in mm
250
204
102
37.5
°
10
75
(15) 22.5
R5
R50
R3
R3
0.2
CI01N502
Lep 9-94170NA Issued 02-06
--- Page 6 ---
1002-29
NOTES
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Lep 9-94170NA Issued 02-06
--- Page 7 ---
1003-5
Feet to meters
IW IW
P P P P P P P P P P
Meters to feet
P P
IW IW IW IW IW IW IW IW IW IW
Miles to kilometers
PLOHV PLOHV
NP NP NP NP NP NP NP NP NP NP
Cre 9-35540 Issued 07-01
--- Page 8 ---
2001
Section
2001
RADIATOR, OIL-COOLER, INTER COOLER, FUEL
COOLER AND ENGINE
REMOVAL AND INSTALLATION
Copyright © 2006 CNH America LLC.
All rights reserved.
CNH Lep 9-94830NA Printed in USA.
Mai 2006.
--- Page 9 ---
3001-3
FUEL TANK
Removal
STEP 1 STEP 9
Remove the screws (8) and the protective plate (9)
from on top of the fuel reservoir (1).
STEP 10
Loosen the two screws (10) located under the
machine. Open the side portion of the machine and
remove the two screws (11) located on the RH side of
the fuel reservoir (1). Remove the protective plate of
the reservoir (12).
STEP 11
Attach labels on the two hoses and remove them.
JS00163A
Park the machine on hard, flat ground. Lower the STEP 12
attachment to the ground. Shift the plastic protection (13) from the fuel sensor
STEP 2 (14). Remove the retaining screws (15) then the fuel
sensor (14) as well as the seal (16).
Reduce the engine speed to idle for 30 seconds, then
shut down the engine. STEP 13
STEP 3 Remove the screws (17) from the fuel tank (1), and
the shims (18).
Turn the ignition key to "ON" without starting the
engine. STEP 14
STEP 4 Remove the fuel tank (1) using a hoist.
Attach a "DO NOT OPERATE" tag to the ignition key STEP 15
in the cab. See the operator's manual for removing the fuel filter.
STEP 5
NOTE: The numbers within brackets refer to the fig-
ures on pages 5 and 6.
Remove the access panel under the fuel reservoir (1).
STEP 6
Open the filling plug (2) of the tank (1). Bleed the
remaining fuel using the valve (3) then remove the
latter. Remove the filter (19) and the fuel gauge (20).
STEP 7
Lift the hood of the front boot. Remove the retaining
screw (4) of the access ramp (5). Remove the access
ramp (5).
STEP 8
Remove the screws (6) on top and then inside the
front boot, then remove the protective housing (7).
Lep 9-43471NA Issued 05-06
--- Page 10 ---
4001-7
ENGINE CONTROL
Fuel Injection Control (Common rail type)
1. Process to determine quantity of fuel injection
1) System diagram
Engine control module (ECM)
INPUT Standard fuel injection
CAN communication Machine
Boost sensor control unit
CKP sensor
G sensor
Correction of:
-Engine coolant temperature
-Atmospheric pressure
-Fuel temperature boost
pressure
-Between cylinders
-Q adjustment
-QR
Correction
Decision of
Open/Close Decision of timing for
timing of SCV energizing injector coil
Common rail
pressure sensor
Common rail Injector coil
SCV
Supply pump
Injector
Fuel tank
700-1-04-01-23ADA
Lep 9-94180NA Issued 02-06
--- Page 11 ---
4001-17
5) Switches and LCD
P4 S2 S3 S4 S7 S8 S9 P5
H1 S5 S22 S10 S11 S12
CD00E007A
H1 Audible warning device
P4 Monitor display 1 2 3 P4
P5 Hourmeter
S2 Travel mode switch
S3 Work mode switch
S4 Auto mode switch
S5 Cushion control switch
S7 Audible alarm cut out switch
S8 Swing brake switch
S9 Emergency engine stop switch
S10Working light switch
S11Wiper switch
S12Washer switch 4 5 6
S22Rotary light switch (Europe only)
CS00F521
S22Free swing switch (North America only) 1 Travel speed indicator
2 Work mode indicator
3 Idle mode indicator
4 Coolant temperature indicator
5 Hydraulic oil temperature indicator
6 Fuel level indicator
Lep 9-94180NA Issued 02-06
--- Page 12 ---
4001-27
BREAKER MODE
1. Alteration 2. Purpose
Optimization of pump current in mode S and in mode Although in the breaker mode up to now, pump cur-
L at the engine speed with the breaker being used. rent in mode S is to be applied at engine speed of
Pump current at engine speed of between 1200 and more than 1500 min-1, It spreads the speed range in
1500min-1 is applied from that in mode L to that in mode S so that the machine can be operated in less
mode S. than that of the flow-rate.
3) Circuit configuration
S14 Y7 R3
1
B25
A2
A1
700.1.04.01.23BB
1 Engine R3 Throttle volume
A1 Computer/Controller S14 Breaker/crusher switch
A2 Engine controller Y7 Main pump proportional solenoid
B25 Breaker pilot pressure switch
4) Operation
1. When the breaker mode switch is turned ON by
locker switch on the console (left side) and the
pressure switch in backup line is turned ON, it
controls to rotation of the breaker.
2. When the engine is rotated at a speed less than that
set for the breaker by controlling the throttle potenti-
ometer, engine speed will not be increased to the
speed set for the breaker even if the breaker is oper-
ated.
3. If the pressure switch in backup line is turned ON
regardless of breaker mode switch input, the pump
current is to be at the current value in mode S irre-
spective of operation of at that time. (However,
when the engine speed is less than 1200min-1,
pump current becomes that in mode L).
Lep 9-94180NA Issued 02-06
--- Page 13 ---
4001-37
POWER BOOST
1) Circuit configuration
A2
B42
A
B44
B27