Graco 3A1334E Manual De Usuario
Troubleshooting
3A1334E
25
Grease Models
Pump fails to operate
Inadequate air supply pressure or
restricted air lines
restricted air lines
Increase air supply and/or clear
restriction.
restriction.
Closed or clogged pump valves
Open and/or clean.
Clogged fluid line, hose, valve, or
other accessory
other accessory
Relieve pressure.
Clear obstruction.
Clear obstruction.
Damaged air motor
Assess damage, and service air
motor.
motor.
Exhausted fluid supply
Refill and reprime or flush.
Continuous air exhaust
Worn or damaged piston o-ring or
valve cup
valve cup
Assess wear or damage, and service
air motor.
air motor.
Erratic pump operation
Exhausted fluid supply
Refill and reprime or flush.
Worn pump seals
Replace.
Damaged shovel tube
Replace.
Damaged check seat
Replace pump piston or shovel rod
(or other damaged part).
(or other damaged part).
Errataic or accelerated pump speed
Exhausted fluid supply
Refill and reprime of flush.
Fluid too heavy for pump priming
Use inductor or follow plate.
Damaged valve gasket
Replace valve gasket.
Lower air pressure to prevent reoc-
currence.
currence.
Pump operates but output is low
Worn piston seal
Replace.
Damaged upper check seat
Replace pump piston.
Worn fluid intake seal
Replace.
Damaged lower check seat
Replace shovel rod.
Inadequate air supply pressure or
restricted air lines
restricted air lines
Increase air supply and/or clear
restriction.
restriction.
Partially closed or clogged pump
valves
valves
Open and/or clean.
Air pockets in the grease inlet
Eliminate the air pockets.
Partially clogged fluid line, hose,
valve, or other accessory
valve, or other accessory
Relieve pressure.
Clear obstruction.
Clear obstruction.
Worn seals
Replace.
Grease leaking from muffler
Worn throat seal
Replace.