Preventing Water Hammer; Chemical Pump Shut Down; After Each Use - Generac G0071260 El Manual Del Propietario

Preventing Water Hammer

Water hammer occurs when the discharge
flow is suddenly blocked or stopped. Pressur-
ized chemicals trapped inside the pump can
quickly boil and crack or damage the pump
housing. To prevent water hammer:
• Do not close the discharge valve while the
pump is operating.
• Do not allow vehicles to drive over the dis-
charge hose.
• Do not abruptly compress the discharge
hose.
• Do not shut off flow while the engine is run-
ning.

Chemical Pump Shut Down

1. Move throttle lever from fast to slow.
2. Turn engine switch OFF.
3. Move fuel valve lever to OFF position.
4. Allow the engine to cool thoroughly.

After Each Use

See Figure 3-6. After cooling, remove the
priming plug (A) and drain plug (B) from the
pump housing and allow it to drain thoroughly.
B
Figure 3-6. Typical Drain Pump Housing
NOTE: Dispose
recommended by the chemical manufacturer
and in accordance with all applicable state
and federal laws.
Rinse out pump with clean water and dispose
of as recommended by the chemical manufac-
turer.
NOTE: DO NOT allow chemical to remain in
pump after use. Leaving chemicals inside the
pump may degrade the materials of the pump.
Trapped chemicals can freeze and crack the
pump housing. Pump damage caused by not
draining pump is not covered by warranty.
NOTE:
Follow these procedures after every use:
1. Drain pump housing.
2. Disconnect hoses.
3. Wipe pump with a clean, dry cloth to
remove excess water and dirt.
4. Store equipment in a clean, dry area.
NOTE: If storing for more than 30 days, see
Storage.
10
A
001522
of the chemical as
Owner's Manual for Chemical Pump
Operation