Operation; Startup; Shutdown; Changing Drums - Graco Husky 515 Instructions Manual

Operation

Operation

Startup

1. See Load fluid with feed pumps in Reactor opera-
tion manual.
2. Open feed pump air regulator.
3. Open feed pump bleed-type master air valve.
4. Adjust air to feed pump with needle valve.
NOTE: Cold, viscous material may be difficult to
prime. Use needle valve to reduce air flow to motor.
NOTE: Do not plug or shut off pump fluid outlet
when priming. Fluid must be free to flow through
pump to prime.
NOTE: To increase pump flow rate and reduce
icing, remove pump muffler. This will increase
exhaust noise.
5. Never let pump run when drum is empty. A dry
pump can accelerate and damage itself. If pump is
running too fast, stop it immediately. Check and refill
fluid supply, or flush with compatible solvent.
Always prime entire system to remove any air. Do
not let material harden in pump.

Maintenance

NOTE: See supplied pump manual for maintenance,
repair, and parts information.
Lubricate bung o-ring (309) with 217374 ISO Pump Oil
each time you change drums. This keeps air and mois-
ture from reacting with ISO.
Whenever pump is removed from drum, inspect bung
o-ring (309) and gasket (303) in place. If either is worn
or damaged, or if ISO shows signs of crystallization,
replace. See page 16.
Tighten pump clamps and external fasteners periodi-
cally. See pump manual.
10

Shutdown

See Shutdown and Pressure Relief Procedure in
Reactor manual. Close feed pump bleed-type master air
valve.

Changing Drums

CAUTION
To prevent cross-contamination of fluid when chang-
ing drums, complete changing one component before
changing second component.
1. See Shutdown.
2. Remove riser tube from drum. Install in new drum.
See Installation, page 5.
3. Lubricate bung o-ring (309), page 5.
4. See Load fluid with feed pumps in Reactor opera-
tion manual.
309815T