Hog Technologies Stripe Hog SK2000, Operation Manual

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Scheduled Maintenance
5.18 Winterization &
Storage Procedures
When operating the truck in freezing tempera-
tures, it is extremely important to properly win-
terize the water and vacuum systems whenever
the truck is shutdown.
Vacuum and UHP System Shutdown And
Winterizing
Water freezing in vacuum system components can
cause serious damage to the blower, silencer, filter
canister, drain valves and other vacuum system
components. It is important to follow the proper
procedure when shutting down the vacuum and
UHP system during cold weather operations or
winter storage to ensure all water is removed
from critical areas in the system and protected
with antifreeze.
Since completely draining the UHP and vacuum
systems is difficult and time consuming, circulat -
ing antifreeze through the system is the preferred
method to winterize the water blasting system.
For trucks operating daily during freezing weather,
this method provides much quicker startup and
shutdown procedures. The procedure requires
a 50/50 mixture of water and glycol based RV
potable water system antifreeze to be circulated
through the system to protect components from
freezing.
35 to 40 US gallons (132 to 152 liters) of premixed
antifreeze at a 50/50 water antifreeze ratio is re-
quired to properly winterize the UHP and vacuum
systems. Make sure you have enough antifreeze
on hand before starting the winterizing procedure.
CAUTION
NEvER USE ALCOHOL BASED ANTIFREEZE SOLUTIONS
TO WINTERIZE THE WATER BLASTING SYSTEM. USING
ALCOHOL BASED ANTIFREEZE SOLUTIONS TO WINTERIZE
THE HIGH PRESSURE WATER SYSTEM WILL DESTROY THE
SEALS AND O-RINGS.
Clean Water Tank Drain & Fill Valves
Wastewater Bladder Drain Valve
Use the following procedure to shutdown and
winterize the water blasting system:
1. Stop the truck and set the parking brake.
2. Set the TRUCK SPEED and HEAD ROTATION di-
als to 0 and make sure the truck engine speed
is set to 2000 RPM with the PTO engaged.
3. Shutdown UHP water by turning OFF the DUMP
VALVE switch.
4. Reduce the auxiliary engine speed to idle and
allow it to run at idle speed for a couple of
minutes to cool internal engine components.
5. Shutdown the auxiliary engine, then turn OFF
the CHARGE PUMP switch.
6. Allow the vacuum blower to operate for a couple
of minutes after shutting down the high pres-
sure and charge water pumps to clear waste-
water from hoses and dry out blower system.
7. Drain all water from the clean water tank,
wastewater bladder and debris cage sump.