Hydraulic Rock Drill COP RR14 / SC14 Ver. C 9 Hydraulic Motor
33 No: 4124851851.2.9007203379904011 en-US
3.
Install the hydraulic motor fixture in position 1a (the motor shaft rotates freely) with the
bolts (4) and washer (3) on the hydraulic motor.
4.
Tighten the bolts (4) alternately to 110 Nm (81.1 lbf ft).
5.
Connect hydraulic hose R (Return) to the return port (B) on the hydraulic motor.
6.
Connect the pressure hose (P) to the inlet port (A) on the hydraulic motor.
7.
Connect the flow meter to the sender (5).
8.
Set the flow restrictor (3) to fully open by turning it counterclockwise.
9.
Press main power switch (4) to start the test unit.
10.
Press down the lever (1) to pressurize the hydraulic motor.
11.
Turn the flow restrictor (4) slowly clockwise until the flow meter reaches 10 l/min maxi-
mum.
a.
Allow the motor to rotate approximately 30 seconds.
b.
Make sure that rotation is constant and without any abnormal noise.
12.
Release the lever (1).
13.
Turn off main power switch (4).
14.
Move the lever (1) up and down a couple of times to release the pressure in the
hoses.
15.
Carefully loosen and remove the hoses, a small pressure can remain in the system.
Plug all connections to secure them from dirt.
16.
Remove the flow meter from the sender (5).
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