Troubleshooting VALMAR
Page 40
Problem Cause Solution
Speed Fan too slow. Loose fan drive belt. Adjust tension.
Flow control valve improperly
set.
Refer to Hydraulic Fan Drive in
Operations section.
Insufficient oil supply from
tractor.
Check hydraulic oil flow
specifications for the tractor.
Ensure that the tractor hydraulic
system is working properly.
Hydraulic Motor leaks. Seal worn or damaged by heat. Replace seal.
Overpressure ruptured seal. Replace seal.
Contaminants damaged seal. Replace seal. Ensure that oil
supply is clean.
Hydraulic fan drive surges and/or
overheats.
Valmar flow controller
incompatible with your tractor’s
hydraulics.
Install a Valmar flow control
bypass kit. See the options
chapter of this manual for
details.
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