131
Section 5 - Scheduled Maintenance
10.
UHP water system hoses, vacuum filter can
-
ister and all Hof Head components should be
drained of water.
11. Remove the spray bar and store it.
12. Open the bleeder valve at the charge water
pump and allow hoses to completely drain.
With the valve still open, activate the pump
briefly to pump out any remaining water, then
close the valve.
13. Pour 20 gallons of 50/50 antifreeze mixture
into the clean water tank.
14. Activate the truck and water blasting system
following the steps in the Startup Procedure.
15. With the engine at idle, activate the charge
water pump, then turn on the DUMP VALVE
switch until antifreeze flows from the thru-
shaft in the Hog Head for 20 or 30 seconds.
Then turn off the DUMP VALVE switch.
16. Shutdown the water blasting system.
17. Disconnect the pressure hose running from the
1 micron filter to the charge pressure safety
switch at the switch fitting.
18. Activate the water blasting system and acti-
vate the charge water pump until antifreeze
flows from the hose fitting for several seconds.
19. Shutdown the water blasting system.
NOTICE:
THE CHARGE PRESSURE SAFETY SWITCH DEACTIVATES
THE DUMP VALVE WHEN CHARGE PRESSURE DROPS
BELOW 30 PSI (2 BAR) TO PROTECT THE UHP PUMP. IF
WATER FREEZES IN THE PRESSURE SWITCH HOSE, IT WILL
SENSE LOW CHARGE PRESSURE AND PREVENT THE DUMP
VALVE FROM ACTIVATING.
Charge Pump Bleeder Valve
Typical Vacuum Canister Drain
Содержание SK5500
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Страница 135: ...135 Section 5 Scheduled Maintenance Hog Technologies...
Страница 141: ...141 Appendix 2 Tools Spare Parts...
Страница 142: ...142 Appendix 2 Tools Spare Parts...
Страница 143: ...143 Appendix 3 Daily Report Pre Op Checklist 1 877 HOG ROAD WWW STRIPEHOGSUPPORT COM...
Страница 151: ...151 Appendix 4 Spray Bar Nozzle Configuration 1 877 HOG ROAD WWW STRIPEHOGSUPPORT COM 68 Nozzle Calculation Sheet...
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