Complete digital official shop manual contains service, maintenance, and troubleshooting information for the Case CX290 Crawler Excavators. Diagnostic and repair procedures are covered in great detail to repair, maintain, rebuild, refurbish or restore your Case CX290 Crawler Excavators like a professional mechanic in local service/repair workshop. This cost-effective quality manual is 100% complete and intact as should be without any missing pages. It is the same factory shop manual used by dealers that guaranteed to be fully functional to save your precious time.
This manual for Case CX290 Crawler Excavators is divided into different sections. Each section covers a specific component or system and, in addition to the standard service procedures, includes disassembling, inspecting, and assembling instructions. A table of contents is placed at the beginning of each section. Pages are easily found by category, and each page is expandable for great detail. It is in the cross-platform PDF document format so that it works like a charm on all kinds of devices. You do not need to be skilled with a computer to use the manual.
“9-53581.pdf”
Case CX290 Crawler Excavators Service Manual
607 pages
EXCERPT:
Table of contents
1 GENERAL INFORMATION
Table of contents
Safety, general information and standard torque data ………. 1001
General specifications and special torque setting …….. 1 002
2 ENGINE
Removal and installation of the engine …… 2000
Radiator and oil-cooler …………. 2001
Engine specifications ………… *
Disassembly and assembly of the engine …….. *
3 FUEL SYSTEM
Fuel tank ……………. 3001
Fuel engine system …… *
4 ELECTRICAL SYSTEM
Electrical system, electrical and electronic troubleshooting ………. .4001
Inspection and maintenance of batteries and connecting a booster battery … .4002
Main and engine electronic control boxes ……….4003
5 UNDERCARRIAGE
Removal and installation of tracks …………. 5001
Rollers ……….. 5003
Sprocket …………….. 5004
Idler wheel and tension shock absorber …………. 5005
6 DRIVE TRAIN
Drive motor and final drive transmission removal and installation ………. 6001
Swing reduction gear, removal and installation … 6003
Swing reduction gear, disassembly and assembly ……. 6004
Travel reduction gear assembly and disassembly …….. 6005
7 UNDER-CARRIAGE HYDRAULICS
8 UPPER-STRUCTURE HYDRAULICS
Depressurizing and decontaminating the hydraulic system, use of the vacuum pump and bleeding the components ………. 8000
Specifications, troubleshooting, checks and hydraulic pressure settings ……… 8001
Hydraulic reservoir removal and installation ……. 8002
Main and pilot pumps, removal and installation ……….. 8003
Main hydraulic control valve, removal and installation ………. 8004
Attachment cylinders, removal and installation … 8005
Hydraulic swivel, removal and installation ……….. 8006
Pilot blocs, removal and installation ……….. 8007
Swing motor, removal and installation …….. 8008
Free swing disassembly and assembly …… 8009
Main hydraulic pump, disassembly and assembly ……. 8010
Main hydraulic control valve, disassembly and assembly ….. 8011
Attachment cylinders, disassembly and assembly ……. 8012
Hand control levers, disassembly and assembly ……… 8013
Foot control levers, disassembly and assembly ……….. 8014
Six-solenoid valves, disassembly and assembly ………. 8015
Caution valve, disassembly and assembly ………. 8016
Safety valve ………… 8017
Hydraulic swivel, disassembly and assembly …… 8018
Swing motor, disassembly and assembly ……….. 8019
Hydraulic functions ………. 8020
Travel hydraulic motor, disassembly and assembly …… 8021
9 UPPERSTRUCTURE
Upper-structure, turntable and counterweight …… 9002
Boom, dipper and bucket ……… 9003
Seat and seat belt ……….. 9004
Cab and cab equipment ……….. 9005
Air conditioner troubleshooting and system checks ….. 9006
Air conditioning unit disassembly and assembly ………. 9007
Air conditioning servicing ……… 9008
Air conditioning components …………. 9009
Attachment reinforcement procedures ……. 9012
Large format hydraulic and electrical schematics ….. Pocket
MAIN CONTROL VALVE
Removal and installation
STEP 1
Park the machine on hard, flat ground. Lower the attachment to the ground.
STEP 2
Release pressure in the hydraulic system and in the hydraulic reservoir (see Section 8000).
STEP 3
Disconnect the earth (-) cable (1) from the battery.
STEP 4
To prevent any fluid leaks when disconnecting hydraulic lines, connect a vacuum pump to the hydraulic reservoir (see Section 8000).
STEP 5
Remove the retaining screws from the upper access door (1) then remove the door.
NOTE: When installing, tighten the screws to a torque of 65 to 79 lb-ft (apply Loctite 262 to the
threads).
STEP 6
Remove the retaining screws from the central frame (1) then remove the central frame.
NOTE: When installing, tighten the screws to a torque of 65 to 79 lb-ft (apply Loctite 262 to the threads).
STEP 7
CD00F116
Remove the screws (1) then remove the clamp (2).
STEP 8
Start the vacuum pump.
STEP 9
Remove the two retaining clips (1) from the hose (2) then remove the hose from the manifold.
STEP 10
Remove the retaining screws (1) from the clamp (2).
STEP 11
Attach identification tags to all hoses, pipes and electrical wires of the control valve. Disconnect and seal the hoses and pipes. Seal the control valve ports.
Disconnect the electrical connections.
STEP 12
Stop the vacuum pump.
STEP 13
Install lifting rings in the threaded orifices on the top of the control valve.
STEP 14
Connect a suitable lifting device to the control valve.
See Section 1002 for the weight of the control valve.
STEP 15
Remove the retaining screws (1) and washers from the control valve.
NOTE: When installing, tighten the screws to the torque specified in Section 1002.
STEP 16
Carefully raise and guide the control valve out of the upper-structure frame. Move all the hoses and pipesout of the way. Remove the control valve from the machine and place it on suitable stands.
NOTE: The following step is to be performed only if the control valve has to be changed.
STEP 17
Remove the unions and manifolds from the control valve which has just been removed and mount them on the new control valve. Remove and install the unions and manifolds one after another to make sure that they are correctly installed on the new control valve.
NOTE: When installing, follow the same procedure in the reverse order. Replace all seals with new seals.
NOTE: Before carrying out any work with the machine, operate the swing, travel and the attachment for five minutes with the engine at idle speed.
Check that there are no leaks in the system, check the level of oil in the hydraulic reservoir, top up if necessary.
Adjust the valves in the control valve (see Section 8001).
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