HydraMaster Titan 625 - Page 86

8-9: Systems Troubleshooting
4. The psi gauge reads normal (low pressure from wand)
Possible Cause Solution
4.1. Restriction in the
cleaning tool
Inspect the tool jet(s) and clean or replace as necessary.
Inspect any lters in the cleaning tool and clean or replace
as necessary.
4.2. Faulty quick connect
in the system
Inspect each quick connect and replace as necessary.
4.3. Restriction in one of
the solution hoses
Remove the quick connects and inspect hoses. Clean or
replace as necessary.
4.4. Hard water deposits
restricting the system
Descale the truckmount.
5. Pressure pulsation
Possible Cause Solution
5.1. Chemical pump is
not primed.
Prime the chemical pump.
5.2. Air leak between the
water box and pump.
Check all the hoses and ttings for cuts, breaks, cracks, etc.
Repair as necessary.
5.3. The check valve(s)
in the pump are faulty.
Remove each valve and inspect for correct operation. See
Machine Maintenance (Section 5).
6. Water box empty or lls slowly
Possible Cause Solution
6.1. Restriction in the
water supply system.
Inspect the supply system from the source through the
incoming quick connect.
6.2. The oat valve in the
water box is faulty.
Disassemble and inspect the valve. Repair or replace as
necessary.
7. The water box overows
Possible Cause Solution
7.1. The oat valve in the
water box is faulty.
Disassemble and inspect the valve. Repair or replace as
necessary.
7.2. The oat has
absorbed water and lost
buoyancy.
Replace as necessary.
7.3. The oat has come
out of adjustment.
Adjust the oat as necessary.