167
PROBLEM
CAUSE AND SOLUTION
Noises & Vibrations
Blower system noise. • Loose blower belts or pump belts. Adjust or
replace belts.
• Blower or drive belts out of alignment. Align
and adjust belts.
Hog Head noise. • Hog Head rotation extremely high. Turn head
rotation dial counterclockwise to reduce head
speed.
High pressure pump noise. • UHP pump pulley out of balance. Balance the
pulley.
Hog Arm & Hog Head
Hog arm won’t raise.
• Float mode activated. Disengage oat function.
• Hydraulics not engaged. Engage PTO to activate
hydraulic system.
• Hydraulic uid low. Add uid to the hydraulic
uid reservoir.
• Hose or tting broken or leaking. Tighten loose
tting or replace broken hose or tting.
Spray bar doesn’t spin or spins slowly.
• Hydraulics not engaged. Make sure PTO is
engaged to activate hydraulic system.
• Debris packed around thru-shaft or spray bar.
Clean thru-shaft or spray bar.
• Hog Head shroud is concave and not convex.
Repair or replace shroud.
• Speed dial control is shut o. Turn the speed
dial clockwise.
• Electric connection is unplugged or no voltage to
coil. Check that LED light on coil is lit and repair
circuit or replace coil as necessary.
• Dirt shield is too tight. Remove dirt shield and
install new dirt shield only nger tight.
UHP Pump & High Pressure System
Fluctuation or pulsing of 40k gauge or inlet
pressure gauge.
• Valve may be pitted or cracked. Remove valve
and check seats for damage - replace or rebuild.
• Leaking packing. Determine which is leaking
and change, ush and replace.
• PTO slipping. Allow PTO to cool and make
adjustments to tighten PTO.
Appendix 1:
Troubleshooting
Waterblasting System Troubleshooting
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