Check And Adjust The Engine Rpm - Genie GS-1530 Maintenance Manual

Maintenance Manual
Quarterly Maintenance Procedures
Q-14 Check and Adj ust the Engi ne RPM
Q-14
Check and Adjust the Engine
RPM - GS-69 RT, GS-84, GS-90
Engine specifications require that this procedure be
performed quarterly.
Maintaining the engine rpm at the proper setting for
both low and high idle is essential to good engine
performance and service life. The machine will not
operate properly if the rpm is incorrect and
continued use may cause component damage.
Note: The on-board self diagnostics incorporate a
built-in engine tachometer. The first two digits of
the engine RPM are displayed on the diagnostic
display when the start toggle switch is moved to the
start position with the engine running. Engine RPM
equals the first two digits multiplied by 100.
Note: These procedures do not apply to the
following engine models. The engine RPM is
controlled by the ECM and can only be adjusted by
re-programming the ECM. If RPM or service is
required, please contact Genie Product Support.
Ford Models: MSG-425 EFI
Deutz Models: D 2.9 L4
Note: Some procedures may require two people.
Note: For engine RPM information refer to
Specifications, Engine Specifications
engine model.
40
1 Start the engine from the ground controls.
2 Press and hold the start button or hold the
start toggle switch and check the engine RPM
on the diagnostic display.
Result: Low idle rpm is correct. Continue with
step 3.
Result: Low idle rpm is not correct. Follow the
low rpm idle procedure for your engine model.
3 Activate high idle (rabbit symbol).
4 Press and hold the start button or hold the
start toggle switch and check the engine RPM
on the diagnostic display.
Result: High idle rpm is correct.
Result: High idle rpm is not correct. Follow the
high rpm idle procedure for your engine
model.
Kubota WG-972:
Low rpm idle adjustment:
1 Loosen the core clamp screw so the cable
moves freely.
2 Hold the throttle lever against the low idle
adjustment screw.
3 Turn the adjustment screw clockwise to
increase low rpm or counterclockwise to
decrease low rpm.
4 While holding the throttle lever against the low
idle adjustment screw, tighten the core clamp
for your
screw.
High rpm idle adjustment:
1 Loosen the lock nut on the high idle
adjustment nut.
2 Turn the high idle adjustment nut clockwise to
increase the high rpm or counterclockwise to
decrease high rpm.
Scissor Lifts
September 2016
Part No. 1272215