Draper 400B Instructions Manual - Page 10
Browse online or download pdf Instructions Manual for Air Compressor Draper 400B. Draper 400B 12 pages. 150 litre compressor
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TROUBLE SHOOTING GUIDE
Thermal overload protection trips.
High oil consumption.
Oil pumping.
Noisy operation (knocking).
Milky oil in crankcase (water in oil).
Oil in compressor air supply.
Low air output.
Excessive belt drive wear.
High moisture contents in air output.
Excessive starting and stopping.
Compressor will not start.
Air blowing from inlet.
Compressor runs continuously.
Compressor runs but does not produce air.
General air leaks.
IMPORTANT:
POWER DIVISION HELP LINE:
SYMPTOMS
PLEASE NOTE ALL REPAIRS/ADJUSTMENTS SHOULD
BE CARRIED OUT BY A QUALIFIED PERSON.
01703 494344
POSSIBLE CAUSES
Oil level low.
Wrong direction of rotation.
Pressure switch failure/motor overload.
Air filter clogged.
Wrong type of oil.
Broken piston rings.
Air filter clogged.
Wrong type of oil
Oil level too high.
Piston scratched, worn or scored.
Loose drive pulley, coupling or excessive wear in
the motorshaft.
Loose fly wheel, drive belt loose.
Low oil level.
High humidity. Change oil more frequently.
Air filter clogged, oil level too high.
Kinked hose, leaking connections.
Air filter clogged.
Piston rings broken or incorrectly seated in.
Cylinder or piston scratched, worn or scored.
Drive belt loose.
Belt loose - slipping, belt too tight.
Pulley and flywheel misaligned.
Caused by high humidity. Drain any excess
moisture from receiver. Move to an area less humid.
High moisture content in receiver.
Air leaks in piping/connections.
Power cable faulty, fuse blown, circuit breaker
open. Motor thermal overload protection tripped or
faulty. Pressure switch faulty. Check if the receiver
pressure is higher than the pressure switch cut-out
pressure (motor will re-start when the receiver
pressure drops below the cut-in pressure).
Broken inlet valves.
Defective pressure switch.
Check all valves are closed. Inspect all gasket in
case one is broken check drive belt is not slipping
or broken.
These result from poor seals on some fittings.
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