Troubleshooting, Problem solution – MAHLE RTI VCX-1 User Manual
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1/4-20 1/2" BOLTS (QTY 4)
5/16 ID WASHER
COMPRESSION SPRING
SMALL O-RING
TANK TOP PLATE
5/16 NUT
Troubleshooting
Problem
Solution
Vacuum becomes weak
Inside of the VCX, there is a venturi vacuum generator that
may have collected debris during the operation of the unit.
If this occurs, the vacuum will become weak resulting in a
lower vacuum reading on the System Vacuum gauge and
poor performance. Remove the venturi from the line and
blow shop air through it. Use the Parts Identification (page
12) to locate the venturi. Reconnect to correct lines when
done.
There may be a vacuum leak at either the top or bottom
sealing point on the tanks. Fill the tank to the top with water
and turn all valves to the Home position. Close the Cone
Adapter Valve and turn all valves to the Empty (leaking
tank) position. Check for leaks and tighten, replace or repair
as necessary.
Leakage
The hex nut at the top of the tank may be loose. Tighten no
more than 1/4 turn past the factory setting. Caution, over
tightening the hex nut can lessen the integrity of the
tank, cause the tension spring to fail or damage the o-
rings (see illustration).
Debris may have collected at the bottom of the tank.
Disassemble tank and clean the base of tank. Take care
when reassembling not to over tighten the hex nut. Turn nut
ONLY three revolutions past finger tight. Check for leaks
and turn in 1/4 turns as necessary.
Over time, the o-ring at the bottom or top of the cylinder may
become worn. Inspect and replace if needed.
Tank Overflow
If fluid is ever filled to the top of the tank while using the unit
there is a device that will release excess to the inside of the
cabinet.
External Clear Hose
Using the VCX to remove coolant from a vehicle creates
high temperatures throughout the unit particularly where the
clear hose connects to the Cone Adapter.
Repeated exposure to these temperatures may cause
deterioration of the hose. If possible cut affect area off and
reconnect Cone Adapter. If replacement of the hose is
required call RTI for a new one.