8 - TROUBLESHOOTING
Problem
Possible Cause
Correction
The three-point linkage
does not move down
when control handle is
moved to down position.
Rate of drop control valve locked in closed
position
Turn the knob counterclockwise, to open
valve
Lift shaft moving parts damaged
See your NEW HOLLAND dealer for ser-
vice
Oil leakage
Connecting part loosened
Tighten
Oil seal damaged
See your NEW HOLLAND dealer for ser-
vice
Pipe cracked
See your NEW HOLLAND dealer for ser-
vice
Steering - Troubleshooting
Problem
Possible Cause
Correction
Hydraulic steering system
does not work
Steering unit damaged or worn
See your NEW HOLLAND dealer for ser-
vice
Steering cylinder piston seal damaged or
worn
See your NEW HOLLAND dealer for ser-
vice
External oil leakage of oil tubes or hoses
See your NEW HOLLAND dealer for ser-
vice
Excessive steering wheel
effort
Front axle is over loaded
Reduce the load on the front axle
Faulty power steering pump
See your NEW HOLLAND dealer for ser-
vice
Power steering relief valve: pressure set-
ting low
See your NEW HOLLAND dealer for ser-
vice
Cylinder movement not as
smooth as steering wheel
Air in steering line if not used for a long time Bleed air in steering system
Air in suction tube
Check suction tube, repair as needed
Cylinder piston seal damaged
See your NEW HOLLAND dealer for ser-
vice
Oil leakage of steering
pump, steering unit,
cylinder
Seal damaged
See your NEW HOLLAND dealer for ser-
vice
Abnormal noise
Lack of oil
Add oil as needed
Restriction of oil flow in suction line
Replace filter
Air in system
Bleed air from system
Hydrostatic transmission - Troubleshooting
Problem
Possible Cause
Correction
When operating HST
pedal, tractor does not
move.
Park brake is engaged
Release park brake
HST range is in “N”
Place HST range in “L” or “H” range
HST Filter clogged
Replace HST filter
HST control linkage worn or damaged
See your NEW HOLLAND dealer for ser-
vice
Tractor is still moving
when HST pedal is in
neutral position
Incorrect neutral adjustment of HST linkage See your NEW HOLLAND dealer for ser-
vice
HST pedal linkage damaged
See your NEW HOLLAND dealer for ser-
vice
HST power is low
Tractor is over loaded
Reduce load from the tractor
Oil shortage
Add transmission oil as needed
Air in HST circuit
Check and repair the hydraulic suction line
HST filter clogged
Replace the HST filter
8-3
Содержание Workmaster 25S
Страница 20: ...1 GENERAL INFORMATION 1 14 ...
Страница 102: ...3 CONTROLS AND INSTRUMENTS 3 40 ...
Страница 118: ...4 OPERATING INSTRUCTIONS 4 16 ...
Страница 186: ...7 MAINTENANCE 7 50 ...
Страница 199: ...9 SPECIFICATIONS NHIL17CT01125FA 1 NHIL17CT01124FA 2 9 9 ...
Страница 200: ...9 SPECIFICATIONS 9 10 ...