2020
Stripe Hog Systems
NOTICE:
THE UHP PUMP CAN CAVITATE IF THE CHARGE WATER
PRESSURE DROPS BELOW 25 PSI (1.7 BAR.) CAVITATION
CAN CAUSE SEVERE DAMAGE TO THE UHP PUMP AND
SHOULD NEVER BE ALLOWED TO OCCUR. YOU SHOULD
ALWAYS MONITOR THE CHARGE WATER PRESSURE AND
NEVER OPERATE THE UHP PUMP WHEN THE CHARGE
WATER PRESSURE DROPS BELOW 30 PSI (2.1 BAR.)
Filters
A two stage lter system in the supply line from
the charge pump to the ultra-high pressure pump
protects the high pressure pump and system from
debris or contaminants in the water supply.
The rst stage lter is a nominal 10 micron bag
lter that traps larger particles and the second
stage is a 1 micron cartridge lter that traps
smaller particles.
The lters are critical to the proper operation of
the Ultra-high pressure water system. They should
be checked daily and changed when the charge
pressure drops to 30 psi (Refer to lter change
procedure in Maintenance section of this manual).
Dirty charge water lters are the number one
reason for low charge water pressure. Sensors
in the charge water system will disengage the
40K clutch and the high pressure pump will shut
down if charge water pressure drops below 30
psi (2.1 BAR).
Operating with dirty lters can cause:
• Unwanted particles forced through the lter
resulting in premature failure of the parts.
• Cavitation in the ultra-high pressure pump
which will result in damage to the pump.
• Reduced ow of lube water to the packing seals
which could damage the seals.
Remember that the lters can be under pressure.
Always make sure the charge pump switch is OFF,
the PTO disengaged and the pressure has been
bled from the system before removing the lter
caps.
Always thoroughly ush the lter canisters and
charge water system when the lters are changed
and before activating the ultra-high pressure sys-
tem. A purge valve located on the low pressure
(charge water) side of the pump is opened to
purge the system after a lter change or to ush
the charge water side of the pump if the system
becomes contaminated. This valve is also used
when adding anti-freeze during cold weather
operations.
1 MICRON FILTER
10 MICRON FILTER
Two Stage Filter System
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