FAULT FINDING CHART
Symptom Fault Solution
Irregular spread speed Incorrect loading procedure
Bed conveyor operating too quickly
Load as per diagram in
‘OPERATION’
Reduce bed conveyor speed
Lumps form during spreading Beater flail tips worn
Bed conveyor operating too quickly
Reverse or renew tips
Reduce bed conveyor speed
Rapid wear of conveyor chain Bed conveyor over tensioned
Bed conveyor under tensioned
Tension bed conveyor as per
instructions in ‘MAINTENANCE’
Tension bed conveyor as per
instructions in ‘MAINTENANCE’
Noise & vibration coming from PTO
shaft
PTO angle too great
Rotor tip(s) missing
PTO shaft tubes bent
PTO shaft cross journal failure
Only steer at angles up to 25
degrees or fit a wide angle PTO
shaft
Inspect and replace beater tips
Replace PTO shaft tubes
Inspect and repair the PTO shaft
Machine vibrating Rotor tip(s) missing
Beater bent
Operating at incorrect PTO speed
Inspect and replace beater tips
Replace beater
Operate the spreader with a tractor
PTO speed of 1000rpm
Bed conveyor movement too slow Oil flow provided by tractor too low
Flow control valve on spreader set
too low
Increase oil flow rate provided by
tractor
Increase flow control valve setting
Poor conveyor speed control Valve malfunctioning Check tractor oil filter and operating
oil temperature
Repair flow control valve
Load not moving at the start or
during spreading
Insufficient tractor hydraulic
pressure
Faulty hydraulic quick release
coupling connecting to tractor
Spreader overloaded
Electrical fault (if electronic control
system is fitted)
Foreign object blocking beaters
Material blocking at entrance to
beaters
Check tractor pressure - ensure it is
greater than 160 Bar (2300 psi)
Inspect and replace the faulty quick
release coupling
Load spreader correctly
Check plugs, power supply and
contacts
Inspect the area around beaters and
remove any foreign objects
Reverse bed conveyor direction for
a short period of time, then retry
8
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General