Troubleshooting - Roughneck 58267 Owner's Manual


Open the master air valve from the compressor.

Open the dispensing valve into a grounded metal waste container, making firm metal-to-metal
contact between the container and valve. Open the bleed-type master air valve and open the
pump air regulator slowly, just until the pump is running. When the pump is primed and all air has
been pushed out of the lines, close the dispense valve.

If you have more than one pump, repeat this procedure for each pump.

Set the air pressure to each pump at the lowest pressure needed to achieve desired results.

Relieve pressure before you check or service any system equipment.
Problem
Pumps fails to
operate
Continuous air
exhaust
Erratic pump
operation
Pump operates but
output low
Leaking from
muffler plates
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Troubleshooting

Possible Cause
Inadequate air supply pressure or
restricted air lines
Closed or clogged control valves
Clogged fluid line, hose, valve, or
other accessory
Damaged air motor
Exhausted fluid supply
Worn or damaged air motor
gasket or seal
Exhausted fluid supply
Worn pump seals
Damaged hose
Worn piston seal
Worn seals
Clogged fluid line, hose, valve, or
other accessory
Worn throat seal
Corrective Action
Increase air supply and/or
clear restriction
Open and/or clean
Relieve pressure
Clear obstruction
Assess damage and service air
motor
Refill and re-prime or flush
Assess wear or damage, and
service air motor
Refill and re-prime or flush
Replace pump seals
Replace hose
Replace piston seal
Replace seals
Relieve pressure
Clear obstruction
Replace throat seal