Hog Technologies Stripe Hog SK2000, Operation Manual

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144
Troubleshooting
PROBLEM CAUSE AND SOLUTION
UHP Pump & High Pressure System
High pressure and/or charge pressure gaug-
es fluctuating or pulsing.
• Truck engine speed is too low and hydraulic
system is not turning the charge pump at proper
RPM. Raise truck engine speed to 2000 RPM.
• Uni-valve may be pitted or cracked. Remove
valve and check seats for damage. Replace or
rebuild.
• One or more UHP pump stuffing box seals are
leaking. Replace leaking seal.
Water dripping from high pressure hose
weep holes.
• Hose fitting loose or damaged. Tighten fitting
or replace hose and fittings.
Water dripping from fluid end manifold rect-
angular weep hole in manifold block.
• Stuffing box seal is worn or damaged. Replace
stuffing box seal.
Water dripping from fluid end manifold round
weep hole on the top of the manifold block.
• Valve or valve seals worn or damaged. Replace
valve seal or valve.
Water dripping from weep hole on thru-shaft
motor high pressure hose connection.
• Swivel nut is loose. Hand tighten swivel nut.
• Swivel seal is worn or damaged. Remove and
replace worn or damaged seal.
• Cracked swivel or thru-shaft. Remove and
inspect shaft assembly. Replace damaged or
cracked components.
Low charge water pressure. (30 PSI or less). • Truck engine speed is too low and hydraulic
system is not turning the charge pump at proper
RPM. Raise truck engine speed to 2000 RPM.
• Charge water pump is not activated or intake
valve is closed. Open intake valve or activate
charge water pump.
• Truck PTO is not activated. Turn on truck PTO
switch.
• Dirty clean water filters. Change filter bag and
cartridge.
• Clean water tank is empty. Fill tank with water.
• Clogged impeller on pump. Disassemble pump
and clean or replace impeller.
• There is an air leak in the suction hose. Find
and repair leak.
• Debris in water hose from tank. Flush or replace
intake water hose.