Service Manual

Troubleshooting
Engine to Transmission Coupler
Problem Possible Cause
Output shaft bearing failure. Lack of lubrication.
Output shaft out of alignment.
Excessive vibration of drive coupling. Drive coupling bent or deformed.
Loose fasteners.
Drive coupling out of alignment.
Flexible (rubber) couplings wear prematurely. Drive coupling bent or deformed.
Loose fasteners.
Drive coupling out of alignment.
Pump hub damaged. Drive coupling bent or deformed.
Loose fasteners.
Drive coupling out of alignment.
PTO System
Problem Possible Cause
Machine vibrates excessively. PTO shaft not properly aligned.
PTO drive shaft does not telescope. Worn bearings or U-joints.
Lack of lubrication to splines and tube.
Galling of U-joint journal cross-ends. Drive shaft RPM to high.
Lack of lubrication.
Abrasive corosion on PTO drive shaft. Extreme low angle operation.
Broken U-joint journal. Excessive shock loading to PTO shaft.
Groundsmaster
®
300 Series Page 9 - 3 Troubleshooting