Troubleshooting - Husky HDC302000 Guía De Uso Y Cuidado

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Troubleshooting

Problem
The discharge pressure
is low.
The air compressor unit is
making excessive noise (a
knocking sound).
There is a large quantity of
oil in the discharge air.
In an oil lubricated
compressor there will
always be a small amount
of oil in the air stream.
There is water in the
discharge air / tank.
The pressure switch does
not release air when the
unit shuts off.
Possible Cause
□ The air demand exceeds the pump
capacity.
□ The air intake is restricted.
□ There are air leaks in the fittings,
tubing on the compressor, or the
plumbing outside the unit.
□ There are blown gaskets.
□ There are leaking or damaged valves. □ Remove the head and inspect for valve breakage, misaligned valves,
□ The motor pulley or the flywheel is
loose.
□ The fasteners on the pump or the
motor are loose.
□ There is no oil in the crankcase.
□ The connecting rod is worn.
□ The piston pin bores are worn.
□ The piston is hitting the valve plate.
□ There is a noisy check valve in the
compressor system.
□ The piston rings are worn.
□ The compressor's air intake is
restricted.
□ There is excessive oil in the compres-
sor.
□ The oil viscosity is wrong.
□ This is normal during operation.
The amount of water increases with
humid weather.
□ The unloader valve on the pressure
switch is malfunctioning.
□ The hole to the unloader line on the
check valve is plugged.
Solution
□ Reduce the air demand or use a compressor with more capacity.
□ Clean or replace the air filter element.
□ Listen for escaping air. Apply soap solution to all fittings and
connections. Bubbles will appear at points of leakage. Tighten or
replace leaking fittings or connections. Use pipe thread sealant.
□ Replace any gaskets proven faulty on inspection.
damaged valve seats, etc. Replace defective parts and reassemble.
Install a new head gasket each time the head is removed.
□ Tighten the pulley / flywheel clamp bolts and the setscrews.
□ Tighten the fasteners.
□ Check for proper oil level; if the oil level is low, check for possible
damage to the bearings. Dirty oil can cause excessive wear.
□ Replace the connecting rod. Maintain the oil level and change the oil
more frequently.
□ Remove the piston assemblies from the compressor and inspect for
excess wear. Replace the excessively worn piston pin or pistons, as
required. Maintain the oil level and change the oil more frequently.
□ Remove the compressor head and the valve plate and inspect for
carbon deposits or other foreign matter on the top of the piston.
Replace the head and the valve plate using the new gasket. See the
Lubrication section for the recommended oil type.
□ Replace the check valve. Do not disassemble the check valve with
air pressure in the tank.
□ Replace with new rings. Maintain the oil level and change the oil
more frequently.
□ Clean or replace the filter. Check for other restrictions in the intake
system.
□ Drain oil down to the correct full level.
□ Only use Mobil 1® 10W-30 or SAE 30 industrial grade compressor
oil.
□ Drain the tank more often. At least daily during use.
□ Add a filter to reduce the amount of water in the air line.
□ Replace the unloader valve if it does not release the pressure for
a short period of time when the unit shuts off. Do not disassemble
the check valve with air pressure in the tank.
□ Check for debris in the unloader line or check the valve that could
block air flow. Do not disassemble the exhaust tube or unloader
tube with air pressure in the tank.
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