HydraMaster Steamatic 8800 TMU, Руководство пользователя

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8-7 - Systems Troubleshooting
Steamatic 8800 TMU
HIgH preSSure SyStem
the pump will not come up to normal cleaning pressure 1.
1.1. The pressure
adjusting valve is faulty. Inspect the valve. Repair or replace if necessary.
1.2. Worn seals or valves
in the pump. Test the pump output volume directly from the pump
at normal running rpm. If the volume is below the
manufacturer's specifications, 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
3,000 rpm under a 12” Hg vacuum load.
no pressure reading on gauge 2.
2.1. The pump belt is
broken. Inspect and replace if necessary.
2.2. The gauge is faulty. Replace the gauge.
the psi gauge reads normal (low pressure from wand) 3.
3.1. Restriction in the
cleaning tool Inspect the tool jet(s) and clean or replace as necessary.
Inspect any filters in the cleaning tool and clean or replace
as necessary.
3.2. faulty quick connect
in the system Inspect each quick connect and replace as necessary.
3.3. Restriction in one of
the solution hoses Remove the quick connects and inspect hoses. Clean or
replace as necessary.
3.4. Hard water deposits
restricting the system Descale the truckmount.
pressure pulsation 4.
4.1. Chemical pump is not
primed. Prime the chemical pump.
4.2. Air leak between the
water box and pump.
Check all the hoses and fittings for cuts, breaks, cracks, etc.
Repair as necessary.
4.3. The check valve(s)
in the pump are faulty. Remove each valve and inspect for correct operation. See
Machine Maintenance, Section 5