Gehl RT175 Operator's Manual page 144

Troubleshooting
Table 46: Hydrostatic Travel Drive System Troubleshooting
Problem
Drive system noisy
Sluggish acceleration
Travel drive does not track straight when
left joystick is in the forward or reverse
position
918468/EP0313
Possible Cause
Hydraulic oil viscosity too heavy
Low hydraulic oil level
Air in hydraulic system
Drive motor(s) or hydrostatic pump(s)
internal damage/leakage
Low hydraulic oil level
Low hydraulic system charge pressure
Drive motor(s) or hydrostatic pump(s)
internal damage/leakage
Engine running rough
Drive sensitivity set too low
Drive system needs to be adjusted for
straight tracking
138
Corrective Action
Allow longer warm-up
Replace hydraulic oil with proper type/
grade. See "Fluids/Lubricants Types and
Capacities" on page 31
Top-off hydraulic oil. See "Checking
Hydraulic Oil Level" on page 112
Cycle lift and tilt cylinders to maximum
stroke and maintain for a few seconds to
clear air from the hydraulic system
Contact dealer
Top-off hydraulic oil. See "Checking
Hydraulic Oil Level" on page 112
Contact dealer
Contact dealer
Poor fuel quality or incorrect fuel type/
grade. Replace fuel with proper type/
grade. See "Fluids/Lubricants Types and
Capacities" on page 31
Restricted fuel filter/fuel system. Replace
fuel filter; remove restriction. See
"Changing Fuel Filter" on page 111
Contact dealer
See "Control Sensitivity Configuration
Screen" on page 48
Contact dealer
Printed in U.S.A.