Prochem Blazer XL - Manual (Page 31)

MAINTENANCE
86037390 01/25/08
4-6
WATER PUMP
Refer to the Water Pump Operation and Service
Manual for specific instructions (P/N 86269900,
PRV NO. 67-945621).
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 red filler cap
and insert dipstick. Oil level should be between
marks on the dipstick or use a mirror and refer to
the illustration.
3. Change the crankcase oil with Cat Pump
Crankcase Oil, Part #86189080, PRV NO.
05-008016, after the first 50 hours of operation.
Drain and refill the crankcase oil with Cat Pump
Crankcase Oil every 500 hours thereafter.
4. Other Cat approved oil equivalents are: Mobil
DTE 16, Amoco Rykow 68, and Shell Tellus
T68.
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.
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 mount in place.
2. Loosen the hose connecting the pump to
vacuum muffler.
3. Turn the adjusting bolts until the proper belt
tension is achieved (1/2” deflection in the center
of the belt, halfway between the pulleys).
4. Retighten all nuts and hose clamps previously
loosened at the vacuum muffler.
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 mount in position. 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.