Repairs - Greenlee 975 Manual De Instrucciones

Repairs

The following section and Figures describe pertinent
details for refinishing ball seats and component
re-assembly and adjustments.
Motor Face Seal
When reassembling the motor, refer to Figure A1 for the
face seal seating dimension. Also, refer to this figure for
setting the vertical position of counterweight (32).
22
21
Greenlee Tools, Inc.
MOTOR SHAFT
MOTOR FACE
4.6mm (.180 inch)
4.1mm (.160 inch)
6mm (.234 inch)
32
Figure A1
8
975 Hydraulic Power Pump
Manual Release/Automatic Release Valve
Handle Setting
Refer to Figures A2 and A3. Thread in the shaft (62) until
it just touches the check ball (55) (in its spring-loaded
closed position). Slide collar (104) on the shaft. Position
the handle (61) at the location "Position 1," (Figure A3),
with the other surface of the handle flush with the end of
the shaft. Lock in place. Rotate the handle to "Position
2," (Figure A3). Slide the collar toward the valve body
until it contacts the 15.9 mm (5/8") diameter portion of
the control shaft. Rotate the lock collar clockwise until it
touches the stop pin, and lock in place.
When locking control handle and lock collar in
place, torque set screws tight to 2.8–3.4 Nm
(25–30 inch-pounds).
54
55
SET POSITION #1
45
STOP
CLOSED
19
4455 Boeing Dr. • Rockford, IL 61109-2988 USA • 815-397-7070
7.938 mm (0.312") ø BALL SEAT
61
104
60
Figure A2
62
STOP
PIN
135
BALL OPEN
112.5 (.99 mm [.039"])
22.5 (REF.)
POSITION 2
Figure A3
8
STOP
OPEN
8