Filter
Top Products
__________________________________________________________________________________________
__________________________________________________________________________________________
________________________________________________________________________________________________________________________________________________________
________________________________________________________________________________________________________________________________________________________
________________________________________________________________________________________________________________________________________________________
________________________________________________________________________________________________________________________________________________________
________________________________________________________________________________________________________________________________________________________
________________________________________________________________________________________________________________________________________________________
________________________________________________________________________________________________________________________________________________________
________________________________________________________________________________________________________________________________________________________
Troubleshooting
The cause of an improperly functioning hydraulic sys-
tem is best diagnosed with the use of proper testing
equipment and a thorough understanding of the com-
plete hydraulic system.
A hydraulic system with an excessive increase in heat
or noise is a potential failure. Should either of these
conditions be noticed, immediately stop the machine,
turn off the engine, locate the cause of the trouble, and
correct it before allowing the machine to be used again.
Continued use of an improperly functioning hydraulic
system could lead to extensive internal component
damage.
The charts that follow contain detailed information to
assist in troubleshooting. There may possibly be more
than one cause for a machine malfunction. All causes
should be checked in the order in which they are listed
on the charts.
Refer to the Testing section of this Chapter for precau-
tions and specific test procedures.
Transmission Operates in One Direction Only
Cause Correction
Faulty traction control linkage. Repair linkage
Transmission charge check valve defective. Inspect and clean or replace charge/check.
System Operates Hot, Looses Power or Will Not Operate in Either Direction
Cause Correction
Faulty control linkage. Repair linkage
Parking brake engaged. Disengage parking brake.
Hydraulic oil level too low. Fill to proper level.
By-pass valve open. Close by-pass valve.
Clogged hydraulic filter. Replace filter.
Low charge pressure - Test A. Inspect charge relief valve and replace if faulty.
Inspect charge pump and replace if faulty.
Low traction pump flow/pressure - Test B. Repair or replace pump.
Low traction motor efficiency - Test C. Repair or replace traction motor.
Troubleshooting Page 4 - 8 Hydroject 3010