Hale RSD - Manual (Page 34)

❑ Operation
34 Section 3: Operating
Hale Products, Inc., Nov.2005, Rev-A
❑ Air enters with the water - Even though the pump may be primed, air
leaks can cause rough operation and an increase in engine speed without
an increase in pressure or flow.
If an air leak is suspected, discontinue pumping - see heading “Trouble-
shooting” on page 59.
❑ Hot water - see Figure F-2: “Lift Loss from Temperature” on page 123.
❑ Low barometer - see Figure F-3a: “Lift Loss from Barometric Reading”
on page 123.
❑ High lift - see Figure F-3: “Lift Loss from Elevation” on page 123.
Note: Also see Section “Appendix F: Cavitation” on page 121.
12. If a pump shutdown is desired while pumping from draft, reduce the engine
speed to IDLE and close the discharge valves.
To resume pumping, open the throttle and discharge valves. If the pump
overheats from continued churning without water flow, open the discharge
valves periodically to release hot water.
13. Set the automatic relief valve according to your fire department policy. If
your fire department does not have a policy, see heading “TPM Operation
from a Hydrant” on page 31.
14. To avoid pump overheating, if not equipped with the Hale TRV valve, open
the pump auxiliary cooling system valve, or slightly open the tank fill line.
15. After completion of pumping procedures, gradually reduce the engine RPM
to IDLE speed. See heading “Pump-To-Road Shift Procedures” on page
39. Disengage the PTO per the PTO manufacturer’s instructions. Also see
heading “Post Operation Procedures” on page 44.
Pumping from On Board Water Tank (Split-Shaft PTO)
1. Position the truck for the best hydrant hookup and discharge hose layout.
2. Bring the truck to a complete stop and apply the truck parking brake.
3. Shift the truck transmission to the NEUTRAL position. See WARNING !
note on page 27.
4. Make sure the truck is at a complete stop before you attempt to shift from
ROAD to PUMP.