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9-91731 – PELLE HYDRAULIQUE Case modèle CX31B, CX36B MANUEL DE SERVICE (FR).pdf
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S5PW0032E02 – CX31B, CX36B Compact Hydraulic Excavator Service Manual.pdf – 949 pages, English, August 2010
Complete digital official shop manual contains service, maintenance, and troubleshooting information for the Case CX31B, CX36B Compact Hydraulic Excavator. Diagnostic and repair procedures are covered in great detail to repair, maintain, rebuild, refurbish or restore your Case CX31B, CX36B 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 CX31B, CX36B 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.
EXCERPT:
24. COMPONENTS SYSTEM
24.1.2.3 OPERATION
(1) Lever in neutral position
In this case, the force of the secondary pressure setting spring (241) that determines the output pressure of the pilot valve is not transmitted to the spool (201). Accordingly, the spool (201) is pushed up by the return spring (221) and spring seat (216) permitting the output port 2, 4 to connect with the tank port T. This makes the output pressure equal to the tank pressure.
Lever in neutral position
(2) When the Lever is tilted
When the lever is tilted, the push rod (212) strokes. The spool (201) and spring seat (216) moves downward to make the port P to connect with the port 2, 4. With the result that the oil of the pilot pump flow out to the port 2, 4, to produce a pressure.
When Lever is tilted
(3) The Lever being held
When the lever is tilted till the pressure of the port 2, 4 rises to an oil pressure corresponding to the set spring force, the hydraulic pressure is balanced with the spring (241) force. And when the pressure of the port 2, 4 rises above a set pressure, the port P are closed and the port T are opened. When the pressure of the port 2, 4 falls below a set pressure, the port P are caused to open and the port T are caused to close, thus holding the second pressure constant.
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33. UPPER SLEWING STRUCTURE
(4)Remove dust seal (10) from the shaft.
(5)Remove seal, etc. from the inside of the body.
-Be sure of the position of seal, etc. referring to the construction drawing.
-Take out O-ring with the pointed tool like a gimlet.
(1) Insert seals in the body.
-Check the seal position referring to the construction drawing.
-Ensure that O-rings are free from twisting.
-Don’t deform or bend the slipper seal extremely.
(2) Install dust seal (10) to shaft (1).
-Apply enough grease to the lip section of the dust seal.
(3) Install shaft (1) to body (2).
-Apply hydraulic oil or grease around the shaft lightly.
-Strike the shaft with a plastic hammer carefully not to damage seal.
(4) Fit thrust ring (4) and snap ring (11).
-Fit the snap ring in the groove correctly.
(5) Fit O-ring (8) and install flange (3).
(6) Install spring washer (14) and bolt (12).
Tools: Socket: 17 mm
or
Tools: Spanner: 17 mm
-Tightening torque : 52 to 57 N-m (38 to 42 lbf-ft)
-Put pipe through the locking pin of the shaft, and check that the shaft rotates smoothly at a torque of approximately 78 to 108 N-m (58 to 80 lbf-ft)
33.2.6.3 MAINTENANCE STANDARDS
33.2.6.3.1 Check Procedures and Remedy
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