Printed in U.S.A.
Copyright © 2010 CNH America LLC. All Rights Reserved.
Case is a registered trademark of CNH America LLC.
Racine Wisconsin 53404 U.S.A.
Part number S5PW0032E02
English
August 2010
SERVICE MANUAL
CX31B
CX36B
Compact Hydraulic Excavator
CX31B - PIN PW14-46519 - and higher
CX36B - PIN PX15-21105 - and higher
SHOP
MANUAL model
INDEX
COMPACT HYDRAULIC EXCAVATOR
SPECIFICATIONSMAINTENANCESYSTEMDISASSEMBLINGTROUBLESHOOTINGE/GOPT.1
2
3
4
5
6
7
SPECIFICATIONS SECTION
MAINTENANCE SECTION
SYSTEM SECTION
DISASSEMBLY SECTION
TROUBLESHOOTING
ENGINE SECTION
PROCEDURE OF INSTALLING
OPTIONS SECTION
Book Code No.S5PW0032E02
0-1
CX31B
CX36B
0-2
GENERAL SAFETY INFORMATION
Do not operate or perform any maintenance on this
machine until all instructions found in the OPERA-
TOR’S MANUAL and this MANUAL have been thor-
oughly read and understood.
Improper operation or maintenance of this machine
may cause accidents and could result in serious in-
jury or death.
Always keep the manual in storage.
If it is missing or damaged, place an order with an
authorized our Distributor for a replacement.
If you have any questions, please consult an autho-
rized our Distributor.
(1) Most accidents, which occur during operation, are
due to neglect of precautionary measures and safe-
ty rules. Sufficient care should be taken to avoid
these accidents. Erroneous operation, lubrication
or maintenance services are very dangerous and
may cause injury or death of personnel. Therefore
all precautionary measures, NOTES, DANGERS,
WARNINGS and CAUTIONS contained in the man-
ual and on the machine should be read and under-
stood by all personnel before starting any work with
or on the machine.
(2) Operation, inspection, and maintenance should be
carefully carried out, and safety must be given the
first priority. Messages of safety are indicated with
marks. The safety information contained in the
manual is intended only to supplement safety
codes, insurance requirements, local laws, rules
and regulations.
(3) Messages of