Prochem Apex GTX User Manual

Page 47

Maintenance

Vacuum Inlet Filter (In Waste Tank)

The vacuum filter in the waste tank should be removed
and cleaned daily. If this is done, the filter will last for a
long period of time.

Vacuum Relief Valve

While the unit is running at full RPM, block the air flow
at the vacuum inlet connection and read the vacuum
gauge. If adjustment is required, shut the unit down and
adjust the vacuum relief valve locking nut tension. Start
your unit and read the vacuum gauge. Repeat this
process until the relief valve opens at 13" Hg.

Vacuum Pump Drive Belts

To tighten the vacuum pump belts:

1. Loosen the four screws which secure the vacuum

pump to the mounting bracket.

2. Turn the adjusting bolts until the proper belt tension

is achieved (1/2" total deflection in the center of the
belt, halfway between the pulleys).

NOTE: When adjusting belt tension, make certain
that the engine shaft and vacuum pump shaft remain
parallel, and the belt tension is equal throughout the
belt width.

3. After adjusting, re-tighten the four screws which

secure the vacuum pump to the mounting bracket.
Check belt alignment with straight-edge.

4. Check for pulley groove wear, clean belts and

pulley grooves, check for worn belts, proper belt
tension, and pulley alignment after the first 25
hours and then again at 100 hours.

5. Check for belt ride in the groove.

Use only exact replacement for system drive belts. Use
only exact manufacturer and models for replacements

Make certain that when you re-torque these screws,
that you use a clockwise pattern and continue until
proper torque is achieved.

Solution Pump

1. Check the crankcase oil level daily to assure the

proper level. Use the illustration as a guide when
checking the oil level. If the level has dropped,
check for the source of leakage and repair.

2. Use the provided dipstick. Remove black cap with

attached dipstick. Oil level should be between
marks on the dipstick. Or use the sight glass
located on the non-shaft side of the pump.

3. Change the crankcase oil with General Pump (GP)

- Interpump oil, (Part # 86189110) after the first 50
hours of operation. Drain and refill the crankcase
oil every 500 hours thereafter.

Solution pump oil capacity is approximately 40.6 oz.

4. Other SAE approved 15W-40 oil equivalents are:

Mobil and Shell Super, Castrol CWX, and Helix
Super.

Torque Value

Component

Inch/lbs

Foot/lbs

Engine Rear Pulley

360

Vacuum Pump Hub

300

RED DOT

OIL LEVEL

WITH UNIT

STOPPED &
ON LEVEL
GROUND

86341750 APEX GTX