7-2
2. INSTALL WORK
Tighten all bolts and nuts(Sleeve nuts) to the specified torque.
Install the hoses without twisting or interference.
Replace all gaskets, O-rings, cotter pins, and lock plates with new parts.
Bend the cotter pin or lock plate securely.
When coating with adhesive, clean the part and remove all oil and grease, then coat the threaded
portion with 2-3 drops of adhesive.
When coating with gasket sealant, clean the surface and remove all oil and grease, check that there
is no dirt or damage, then coat uniformly with gasket sealant.
Clean all parts, and correct any damage, dents, burrs, or rust.
Coat rotating parts and sliding parts with engine oil.
When press fitting parts, coat the surface with antifriction compound(LM-P).
After installing snap rings, check that the snap ring is fitted securely in the ring groove(Check that
the snap ring moves in the direction of rotation).
When connecting wiring connectors, clean the connector to remove all oil, dirt, or water, then
connect securely.
When using eyebolts, check that there is no deformation or deterioration, and screw them in fully.
When tightening split flanges, tighten uniformly in turn to prevent excessive tightening on one side.
When operating the hydraulic cylinders for the first time after repairing and reassembling the
hydraulic cylinders, pumps, or other hydraulic equipment or piping, always bleed the air from the
hydraulic cylinders as follows:
Start the engine and run at low idling.
Operate the control lever and actuate the hydraulic cylinder 4-5 times, stopping 100mm before the
end of the stroke.
Next, operate the piston rod to the end of its stroke to relieve the circuit. (The air bleed valve is
actuated to bleed the air.)
After completing this operation, raise the engine speed to the normal operating condition.
If the hydraulic cylinder has been replaced, carry out this procedure before assembling the rod to
the work equipment.
Carry out the same operation on machines that have been in storage for a long time after
completion of repairs.
10)
11)
12)
13)
14)
1)
2)
3)
4)
5)
6)
7)
8)
9)
(1)
(2)
(3)
(4)
ö
ö
