Genie S-80 Service Manual page 71

February 2017
Perkins 804D-Model:
1 Connect a tachometer to the engine. Start the
engine from the ground controls and check the
rpm. Refer to Specifications, Engine
Specifications.
Skip to step 3 if the low idle rpm is correct.
2 Loosen the low idle lock nut. Turn the low idle
adjustment screw clockwise to increase the
rpm or counterclockwise to decrease the rpm.
Tighten the low idle lock nut and confirm the
rpm.
Perkins models
1 solenoid boot
2 yoke lock nut
3 low idle adjustment screw
4 low idle lock nut
5 yoke
6 high idle adjustment nut
Part No. 1259369GT
Checklist C Procedures
3 Move the function enable/rpm select toggle
switch to the high idle (rabbit symbol) position.
Refer to Specifications, Engine Specifications.
If high idle rpm is correct, disregard
adjustment step 4.
4 Loosen the yoke lock nut. Turn the high idle
adjustment nut and solenoid boot
counterclockwise to increase the rpm or
clockwise to decrease the rpm. Tighten the
yoke lock nut and recheck the rpm.
Note: Be sure the solenoid fully retracts when
activating high idle.
S-80 • S-85 • S-80X
Service Manual
51