4 - 2
Section F
Transmission
9803/6400
Section F
4 - 2
Issue 1
Motor/Gearbox
Precautions during Installation (continued)
Install the new or repaired and inspected traction motor on the machine and perform the inspection and starting preparations
described below.
a. Fully fill the piston motor case with clean hydraulic oil. Also bleed air from each part of the piping.
Fill gearbox casing to level A.
Fig 10.
Note: When using a hand pump or small capacity electric pump for filling with hydraulic oil, be careful that the inner case
pressure does not exceed 0.3 MPa (3 kgf/cm
2
). Oil Capacity is 400 cm
3
.
b. Initial Operation
First run at low speed, repeating the operations. At this time, air remaining in the circuit may cause abnormal sounds in
the valve, so continue running at low speed. Also check for oil leakage from the equipment.
After air bleeding and checking for oil leakage is completed, confirm that abnormal noise or vibration does not occur in
the traction motor due to running with a load on the motor.
A
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