Troubleshooting Guide
System Diagnosis
Troubleshooting Guide
HD-R10doc072619
6-11
6
Low Battery
Low voltage could cause the Throttle
ECU to shut down
Cranking in cold weather could cause
the battery voltage to temporarily
drop causing this issue
Accessory(Ignition) Sole-
noid(K1) failure
No coil voltage
Check for 12VDC on top and bottom
posts when the key switch is on(1)
No output voltage
Listen for a distinct click from the
solenoid when the key switch is
turned on(1)
Check for 12VDC on right post of
solenoid when the key switch is on(1)
Condensation can build on contacts
in cold temperatures, then freeze
when not in use. Cycling the key
switch from off(0) to on(1) several
times can break the ice
Replace faulty solenoid
Hydraulic Oil Temperature
High
Verify oil temperature on sight gauge
on the hydraulic oil reservoir
Dirty Oil Cooler or Engine Radi-
ator
If the temperature raises slowly over
several hours it is most likely reduced
air flow through the cooler from saw
dust build up
Clean saw dust build up out of oil
cooler
Remove oil cooler from engine radia-
tor and clean saw dust build up out of
the engine radiator
Faulty temperature switch(S2)
If the oil temperature on the sight
gauge is well below 170°F either the
switch could be faulty or there is a
bad connection. Check to make sure
all connectors are securely fastened.
Replace if necessary
Contaminated Pressure Relief
Valve(V1.TS1, V1.RV1,
V5.RV1),
Reference Hydraulic Sche-
matic for valve locations
Remove and clean if you have the
ability to do so properly.
Oil filter dirty and in bypass
Replace if necessary, filter change
every 500 hours per manual
PROBLEM
CAUSE
SOLUTION