Prochem Peak GTX - Manual (Page 47)

45
Maintenance
PROBLEM CAUSE SOLUTION
Loss of vacuum
While cleaning,
the vacuum is
not up to specifi-
cation. Engine
RPM is normal.
Vacuum obstruction Inspect hoses for obstructions.
Vacuum gauge is giving an improper
reading. Examine the tubing between the vacuum relief valve
and the vacuum gauge and remove any blockage.
Vacuum hose(s) is damaged, causing a
suction leak.
Inspect hose(s), repair or replace.
Waste tank gaskets not sealing properly,
not positioned properly Inspect the gaskets. Repair or replace as necessary.
Re-position lid, inlet and outlet.
Plugged vacuum hose or vacuum plumbing
between vacuum inlet and strainer basket.
Unplug vacuum hose or inlet plumbing.
Waste tank filter or strainer basket is
plugged.
Clean or replace filter. Clean strainer basket.
Loose vacuum pump drive belts. Tighten the drive belts
Waste tank drain valve is damaged or left
open, causing a vacuum leak.
Close drain valve, if open. Remove the drain valve
and, after inspecting, replace the defective compo-
nents.
Vacuum relief valve requires adjustment or
has a vacuum leak due to damaged
diaphragm. Re-adjust the vacuum relief valve. If the vacuum
does not increase, remove and inspect the relief
valve diaphragm. If damaged, replace
Vacuum exhaust heat exchangers are
plugged with lint.
Remove and clean.
Vacuum pump is worn out. Replace the vacuum pump.
Excessive
Vacuum Improper throttle adjustment. Adjust throttle to set desired vacuum pressure.
Vacuum relief valve requires adjustment. Readjust the vacuum relief valve.
Loss of
chemical with
the cleaning tool
valve open, no
chemical
Chemical pump is improperly primed. Refer to chemical pump priming instructions.
Air leak in chemical supply tube, priming
valve or metering valve.
Check for air leaks. Replace faulty parts.
The strainer at the inlet end of the chemical
inlet tube is clogged
Unclog the strainer. If damaged, replace.
Suction leak in the inlet tube leading into
the chemical pump. Inspect inlet tube and flow meter for air leaks or
damage and replace, if required.
Chemical pump check valve(s) is clogged
Remove any debris from the chemical check
valve(s). Replace chemical check valve(s) or seals,
if necessary.
Chemical prime/on-off valve or chemical
metering valve is defective.
Replace valve(s).
Chemical pump diaphragm is ruptured.
Disassemble the chemical pump and replace the
damaged diaphragm and plastic disk.
Defective cylinder in the solution pump.
Measure the pump volume. If the pump volume is
less than normal, refer to "Loss of Pump Volume" in
the Troubleshooting section in this manual.
86325860 PEAK GTX PROCHEM