Hale Trailer - Manual (Page 32)

❑ Accessories / Options
32 Accessories / Options - Skid & Trailer
p/n: 209-0020-101-0
WARNING !
TRV DISCHARGE WATER CAN BE “HOT!” BE CAREFUL TO AVOID BURNS.
TRV-L Kit
The TRV-L kit includes a chrome panel placard with a warning light, a light
test button, and a pre-assembled wire harness. The RED light illuminates
when the TRV is open and discharging water. (See Figure 2a-7: “Thermal
Relief Valve, TRV,” on page 31.) An optional buzzer, mounted on the opera-
tor panel, provides an audible warning.
2A.7 PRIMING SYSTEMS
Hale recommends and uses Rotary Vane Positive Displacement ESP
pumps for priming. Priming pumps are used to evacuate air in the suction
hose and pump. (See Figure 2a-8: “Rotary Vane ESP Priming Pump.”)
Figure 2a-8: Rotary Vane ESP Priming Pump
The Hale ESP series priming pump is an environmentally friendly primer
that does not require a separate lubricant reservoir. The vanes and pump
body are self-lubricating for maintenance free operation. An ESP priming
pump also uses a single control to open the priming valve and start the
priming motor.