Tension spring location THROTTLE 4.4 Adjustments The throttle system can be adjusted for tension and total travel. (stroke) If the throttle system can not maintain a constant, steady, engine speed then the throttle handle tension spring may need to be adjusted. 1 Raise the boom arms, engage the boom supports and shut off the engine. WARNING C1885 Never work under the boom arms without the boom supports engaged. Tension spring 4 2 Remove the seat and hydrostatic shield. 3 Locate the throttle handle pivot and tension spring under the left hand cover plate. (fig.
C1885, C2023) 4 Tighten the nut on the tension spring clock wise to increase the spring tension to gain clamping force against the friction pad. If this fails to repair the problem then the friction pad may need to be replaced. Lock nut Bolt To check the throttle travel: 1 Open the rear door and locate the engine lever and throttle rod linkage. 2 Stroke the throttle lever in the full forward position. The engine lever must touch the limiter bolt stops to acquire full engine speed. 3 Stroke the throttle lever rearward until it stops. The engine lever should touch the limiter bolt to acquire the engines proper low idle speed.
4 Adjust the set collars an either side of the engine lever and throttle linkage to get the full range of required travel for the engine lever to touch the limiter bolts. C2023 Friction pad Throttle control Low Idle position Hi Idle position C2024 4-22 Engine lever Hi Idle position Low Idle C2016 Limiter bolts position C2016 Limiter bolts