Troubleshooting - Prochem APEX GTX 1.001-139.0 Operating Instructions Manual

Maintenance

Troubleshooting

Problem
Water supply is turned off or the float
valve is stuck or improperly adjusted.
Solution pump inlet supply line is
plugged or drawing air.
Improper engine speed -
Loss of solution
Improper engine speed -
pump pressure.
With the cleaning
Pressure regulator o-rings are dry.
tool open, the
solution pressure
Pressure regulator has worn o-rings
gauge reads below
the normal operating Pressure regulator is dirty, stuck open,
pressure. or improperly adjusted.
Low pump volume. (Measure the
amount of water being returned to the
water box from the pressure regulator.
It should fill a gallon container about
every 17 seconds).
Defective solution pressure gauge.
Orifice (spray nozzle) in the cleaning
tool is worn, defective, or wrong size.
Debris clogging water lines or water
inlet disconnect.
Belts loose or broken
Loss of pump prime
Plugged orifice and/or screen in the
cleaning tool.
Internal block between the pressure
Loss of solution
regulator manifold and the solution
volume at cleaning
manifold, or the solution screen is
tool orifice.
clogged
Outlet check valve is plugged
Solution gauge
reads normal.
Defective quick-connect on one or
more of the solution pressure hoses.
Cleaning tool valve is malfunctioning.
Hose inner lining is constricted.
56
Cause
Gas
Diesel
86410220 Operators Manual - Apex GTX Prochem
Solution
Turn the water supply on or up. Check for kinks in
the water supply hose. Examine the float valve
and adjust or replace.
Examine the water inlet strainer inside the water
box. Remove accumulated debris and replace if
required. Check for suction leaks and loose
clamps or fittings. Tighten any loose fittings or
clamps. Replace any ruptured hose(s).
Using a tachometer, check the engine speed. Full
throttle engine speed is 2740 RPM. Idle engine
speed is 850 RPM. Refer to the "engine Speed"
section for instructions on how to re-adjust.
Using a tachometer, check the engine speed. Full
throttle engine speed is 2650 RPM. Idle engine
speed is 1300 RPM. Refer to the "engine Speed"
section for instructions on how to re-adjust.
Lubricate o-rings, using o-ring lubricant Part
#86265430.
Check o-rings. If necessary, replace.
Clean or repair regulator. Adjust to working
pressure. Lubricate o-rings, using o-ring lubricant.
Examine the check valves, plunger cups, and
cylinder head on the solution pump. Repair,
whenever required (refer to the solution pump
service manual).
Replace gauge
Replace Nozzle or change nozzle size.
Clean or replace as needed.
Re-tension or replace as needed.
Manually prime solution pump
Unplug or replace orifice and/or screen.
Inspect all lines, remove accumulated debris
which is blocking proper flow. Replace any
defective hoses. Remove, inspect, and clean the
solution screen. De-scale unit and install a water
softener, if necessary.
Examine the check valve, remove any debris
Replace defective quick-connect(s) on solution
pressure hose(s).
Repair or replace valve.
Remove restriction or replace hose.