New Holland WORKMASTER 35, Operator'S Manual

Page: 158 / 180

8 - TROUBLESHOOTING
Problem
Possible Cause Correction
Instrument panel engine
oil pressure indicator light
is "ON" during operation. Lack of engine oil Add engine oil as needed
Low viscosity of engine oil Replace oil with proper viscosity type
Faulty pressure switch Replace switch
Faulty engine oil pump Repair oilpump as needed
Engine oil filter clogged Replace the filter
Instrument panel battery
charging indicator is "ON"
during operation. Bad electrical connection Check battery terminals, ground, and repair
as needed
Faulty alternator Repair or replace alternator as needed
Faulty battery Replace battery
Incorrect fan belt tension or belt broken
Adjust belt tension or replace belt
Clutch - Troubleshooting
Problem
Possible Cause Correction
Clutch slips Incorrect adjustment of clutch pedal free
play Adjust the pedal free play correctly
Clutch disc lining worn or broken Replace clutch disc
Clutch does not release Excessive clutch pedal free play Adjust the pedal free play
Clutch disc damaged Repair or replace clutch disc
Hydraulic service brakes - Troubleshooting
Problem Possible Cause Correction
Brake does not work or
only one side works. Incorrect brake pedal free play Adjust brake pedal free play to correct
specification
Brake disc lining worn or broken Replace brake discs as needed
After engaging brake
pedal, pedal will not
return Return spring damaged Replace the spring
Lack of lubrication in brake shaft linkage
parts Clean and lubricate linkage as needed
Damaged internal brake parts Repair internal brake parts as needed
Hydraulic Lift System - Troubleshooting
Problem
Possible Cause Correction
The 3-point linkage will
not raise Lack of transmission / hydraulic oil Add oil as needed
Air in the hydraulic suction pipe Tighten the hydraulic filter and check all hy-
draulic suction connections
Hydraulic filter clogged Replace hydraulic filter
Faulty hydraulic pump Check pump for proper flow replace pump
if needed
Faulty control valve Check hydraulic control valve and linkage
for proper operation repair as needed
Faulty hydraulic lift cylinder Repair lift cylinder as needed
Faulty hydraulic relief valve Check hydraulic system for correct pres-
sure setting, repair as needed
Oil leakage Connecting part loosened Tighten
Oil seal damaged
Replace
Pipe cracked Replace
The 3-point linkage does
not move down when
control handle is moved
to down position. Down speed control valve locked in closed
position Turn the knob counterclockwise, to open
valve
8-2