7-7: Troubleshooting
TILE SYSTEM
1.0 The pump will not come up to normal cleaning pressure
Possible Cause Solution
1.1 The tile pressure adjusting
valve is faulty.
Inspect the valve. Repair or replace if necessary.
1.2 Worn seals or valves in
the tile pump.
Test the pump output volume directly from the pump
at normal running rpm. If the volume is below the
manufacturer’s specications, replace the seals and
inspect for defective valves.
1.3 The pump rpm is too low. Check for a loose pump belt. Adjust or replace as
necessary.
Check the engine rpm and adjust as necessary to
3,150 rpm under a 0” Hg vacuum load.
1.4 The tile primary orice is
missing or loose.
Remove and inspect. Tighten or replace as
necessary.
1.5 The tile primary and
secondary orices have
been installed incorrectly.
Inspect and reverse if necessary. Refer to the
Machine Assemblies & Parts List Section.
1.6 The tile primary orice is
worn.
Measure the orice size and replace as necessary.
Correct size is 0.039”.
2.0 No pressure reading on gauge
Possible Cause Solution
2.1 The pump belt is broken. Inspect and replace if necessary.
2.2 The gauge is faulty. Replace the gauge.
2.3 Water box is empty. Fill the water box.
2.4 Water box switch is faulty. Replace water box switch.
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