CG935G Wheel Loader. Manual - part 18

 

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CG935G Wheel Loader. Manual - part 18

 

 

- 73 - 

 Remove suspender and note the materials slid. 

1. Load hard soil from the bottom to the upper surface 

2. Lift the bucket slightly and leave the soil stack. 

2.5 Excavation 

1. Lay the bucket on the ground and make it have a small excavation angle. 

2. Prior to the loader advances, press the bucket downwards, and make the lifting joy stick of 

the moving arm at the position of holding when the bucket reaches the enough depth. 

3 Keep the bucket leveled scraping and excavation by lifting and laying down the bucket. 

4 As the bucket is filled, take back the bucket to make it run against the stopper. Drive the 

loader to the material unloading position when the bucket is away from the ground for 40cm. 

2.6 Loading to Bucket 

1.  Fill the bucket (See “Loading of Stockpile”). 

When the bucket reaches the lifting limit position, materials may be loaded to the chopper 

leeward if possible. 

 

 

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Repairing and Maintenance 

I Knowledge on Tyre Inflation   

1.1 Tyre Inflation with Nitrogen (N2) 

 SICHUAN CHENGDU CHENGGONG CONSTRUCTION MACHINERY CO.,LTD. 

suggests that all rubber tyres and tyres’ pressure would be inflated and regulated with 

nitrogen respectively. Nitrogen is a kind of inert gas and does not support combustion. 

 In order to avoid redundant nitrogen in the tyre, proper nitrogen inflation equipment 

shall be used and necessary training on application of the equipment is required. 

Improperly using the equipment may result in blowout of tyre possibly, even serious 

personal injuries and death. 

 Because the pressure of the cylinder filled with nitrogen is about 15000kPa, 

improperly using the inflation equipment will possibly result in blowout of tyre or 

damage of wheel rim. 

 Besides the function of weakening the dangerousness of the explosion, the inflation with 

nitrogen may also delay rubber’s aging and gradually wear of tyres (it is especially 

important that the tyre has expected service life (four years above). In addition, it may 

reduce the dismantling problem due to the corrosion of the wheel rim parts. 

 In tyre inflation, an inflation chuck that clips tightly automatically shall be used. The 

operator shall stand outside the tyre.   

 

The set pressure of the modulating valve of the inflation equipment shall not exceed the 

recommended pressure 300~350 kPa。The press of the tyre inflated with nitrogen shall be 

same as the one with air.

 

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1.2 Regulation of Inflation Pressure 

 If the loader works under a cold condition, the pressure for tyre inflation at a warm place 

of 18℃~21℃ is too low. The low pressure will shorten the service life of the tyre. 

 Please see working and maintenance manual for the regulation of inflation pressure under 

a cold condition. 

1.3 Purchase of Tyres 

Specification of tire is 17.5-25-16PR, with inner tube. 

As the tyre requires to be 

replaced, the user may purchase the tyre of same specifications at the local store.

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II Standard for Screw Torque

 

Usually, fasteners will be dismantled in repairing. For reinstallation, the following items 

shall be noted: 

 The bolts and nuts dismantled from the loader shall be kept well for reinstallation. In case a 

new fastener is required, the size and grade of the new fastener shall be same as the old 

one. 

 The strength of the material is marked with number (8.8, 10.9 etc.) on the head of the bolt 

usually. The standard torque for the 8.8-grade bolt and nut is given in the following table. 

 

 

Size of 

Thread

 

Standard Torque (N.m)

 

M6 12±4 

M8 

25±7

 

M10 

55±10

 

M12 

95±15

 

M14 

150±20

 

M16 

220±30

 

M20 

450±70

 

M24 

775±100

 

M30 

1600±200

 

M36 

2700±400

 

 

 

 

 

 

 

 

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