Troubleshooting - Graco Fire-Ball D Series Instructions-Parts List Manual

7. Read and follow the instructions supplied with
each component in your system.
WARNING
To reduce the risk of serious injury whenever you
are instructed to relieve pressure, always follow the
Pressure Relief Procedure on page 8.
WARNING
SKIN INJECTION HAZARD
To reduce the risk of serious bodily
injury, including fluid injection or splash-
ing in the eyes or on the skin, always
follow the Pressure Relief Procedure on page 8
whenever you shut off the pump, when checking or
servicing any part of the system, when installing or
changing dispensing devices, and whenever you
stop dispensing.
Problem
Pump fails to operate
Continuous air exhaust
Erratic pump operation
Pump operates, but output low on
up stroke
Pump operates, but output low on
down stroke
Pump operates, but output low on
both strokes
Fluid is coming out of the muffler.
* Follow the Pressure Relief Procedure on page 8 and disconnect the fluid line. If the pump starts when
the air is turned on again, the line, hose, valve, etc., is clogged.
Operation
8. If the pump will be unattended for any period of
9. Check periodically to ensure that the pump's

Troubleshooting

NOTE: Check all other possible problems and solu-
Cause
Inadequate air supply pressure or
restricted air lines
Closed or clogged dispensing
valve
Clogged fluid lines, hoses, valves,
etc.
Damaged air motor
Exhausted fluid supply
Worn or damaged air motor gas-
ket, packing, seal, etc.
Exhausted fluid supply
Held open or worn intake valve or
piston packings
Held open or worn piston packings
Held open or worn intake valve
Inadequate air supply pressure or
restricted air lines
Closed or clogged valves
Worn or damaged throat seal
time, if there is an air supply interruption, or to shut
off the system at the end of the work shift, always
relieve the pressure.
mounting is secure.
tions before disassembling the pump.
Increase air supply; clear
Open; clear
Clear*
Service air motor
Refill and reprime or flush
Service air motor
Refill and reprime or flush
Clear; service
Clear; service
Clear; service
Increase air supply; clear
Open; clear
Service
Solution
308608K 9