Water Pump Clutch; Vacuum Inlet Filter; Vacuum Relief Valve; Vacuum Pump Drive Belts - Prochem LEGEND GT Operating Instructions Manual

WATER 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. Remove yellow filler cap. Oil level should be
between marks on the dipstick or use a mirror
and refer to the illustration.
3. Change the crankcase oil with GP Pump
Crankcase Oil, after the first 50 hours of
operation. Drain and refill the crankcase oil with
General Pump Crankcase Oil every 500 hours
thereafter.

VACUUM INLET FILTER

(IN WASTE TANK)
1. 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.
OIL LEVEL
WITH UNIT
STOPPED &
ON LEVEL
GROUND
RED DOT
86313050 LEGEND GT 09/12/08

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 nuts which hold the vacuum
pump mounts in place.
2. Turn the adjusting bolts until the proper belt
tension is achieved (1/2" 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 nuts which
hold the vacuum pump mounts in position.
Check belt alignment with straight-edge.
screws, that you use a clockwise pattern and
continue until proper torque is achieved.
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.
MAINTENANCE
Make certain that when
you re-torque these
4-6