Porter-Cable PXCMV5048055 Use and Care Manual download pdf (Page 19)

19 - ENG

TROUBLESHOOTING

Note: Troubleshooting problems may have similar causes and solutions.

PROBLEM POSSIBLE CAUSE SOLUTION

Excessive current

draw trips circuit

breaker of motor reset

switch

Low voltage/motor

overload

Check that power

supply is adequate

and that compressor

is on a dedicated

circuit. If compressor is

connected to a circut

protected by a fuse, use

dual element time delay

fuses (Buss Fusetron

type “T” only).

Drive belt too tight Readjust belt tension

Restricted air passages Inspect and replace

transfer tubes or

check valve, as

required.

Compressor stalls Low voltage motor Furnish adequate power.

Bad check valve Replace the check

valve.

Seized pump Contact authorized

service center.

Low discharge

pressure

Air leaks Tighten or replace

leaking fittings or

connections. Do not

overtighten.

Leaking valves Contact authorized

service center.

Restricted air intake Clean or replace air filter

element(s).

Blown gaskets Contact authorized

service center.

Worn piston rings or

cylinder

Contact authorized

service center.

Compressor pump

knocking

Loose engine pulley or

compressor flywheel

Retighten pulley

and flywheel. Check

alignment.

Low oil level in pump

crankcase

Keep oil at proper level

at all times.

Excess carbon on valves

or top of piston

Contact authorized

service center.

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Porter-Cable PXCMV5048055 Use and Care Manual Page 19

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