Genie GS-2046, Service Manual

Page: 114 / 236

4 - 74 Genie GS-2046 and GS-2646 and GS-3246 Part No. 72972
June 2003 Section 4 • Repair Procedures
REV B MANIFOLDS
9 Adjust the internal hex socket. Turn it clockwise
to increase the pressure or counterclockwise to
decrease the pressure.
Tip-over hazard. Failure to adjust
the relief valves to specification
could cause the machine to tip
over resulting in death or serious
injury. Do not adjust the relief
valve pressures higher than
specifications.
10 Install the relief valve cap.
11 Repeat steps 5 through 7 to confirm the relief
valve pressure.
Confirm the Lift Relief Valve Pressure:
12 Place the maximum rated load in the platform.
Secure the load to the platform. Refer to
Section 2,
Specifications.
13 Turn the key switch to ground control and pull
out the Emergency Stop button to the
ON
position at both the ground and platform
controls.
14 Hold the lift relief valve with a wrench and
remove the cap (item BC or CC).
15 While activating the platform up function, adjust
the internal hex socket clockwise, just until the
platform begins to raise.
16 Fully lower the platform.
17 Add an additional 100 pounds / 45.4 kg to the
platform. Secure the additional weight.
18 Raise the platform slightly.
Result: The power unit should not be able to lift
the platform.
Result: If the power unit lifts the platform, adjust
the internal hex socket counterclockwise until
the adjustment is correct.
19 Install the relief valve cap.
20 Remove the weight from the platform.
21 Bleed the hydraulic system by raising the
platform to full height. If the pump cavitates or
the platform fails to reach full height, add
hydraulic oil until the pump is functioning
correctly. Do not overfill the hydraulic reservoir.
Component damage hazard. Do
not continue to operate the
machine if the hydraulic pump is
cavitating.
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