Prochem Blazer XL - Manual (Page 32)

MAINTENANCE
86037390 02/14/07
4-7
WATER PUMP DRIVE BELT
To tighten the water pump belt:
1. Loosen the bolts which hold the water pump
mount to base.
2. Adjust the position of the belt tension adjusting
bolt until the proper belt tension is achieved.
(1/2" deflection in the center of the belt, halfway
between the pulleys).
3. While checking the alignment, tighten the nuts
which hold the water pump mount to base.
4. Check belt and pulley every 100 hrs.
FLOAT VALVE (WATER BOX)
1. Check the float valve weekly for proper
operation. If overfilling is a problem, check the
plunger for a proper seal. Replace tip on
plunger (PN 86192380, PRV NO. 16-808164) if
needed.
NOTE: If the float ball has any water inside it
must be replaced.
When replacing float
ball, DO NOT over-
tighten, as the rod can puncture the ball. Make
sure to tighten the nuts on the rod.
2. Disassemble the valve and check the piston and
seat for damage, replace if needed. See the
“Illustrated Parts Listing” for a parts break-down.
WASTE TANK STRAINER BASKET
The strainer basket located inside the waste tank
should be removed and cleaned whenever it is full of
debris. This should be done on at the end of each
job.
WASTE TANK FLOAT VALVE
The float valve in the waste tank shuts the unit down
once the waste tank becomes full. Debris can
collect around the hinge of the float valve. Check
the float valve for debris at least once a month.
Y-STRAINER (OUTLET)
Inspect the Y-strainer after the first week of running
the unit by unscrewing the screen and remove any
accumulated debris. Inspect the strainer again at 2
and 4 weeks.
The Y-strainer should then be inspected every
month. However, if the Y-strainer has a frequent
build-up of debris it should be inspected and cleaned
more often.
CHECK VALVE (OUTLET)
Inspect the check valve when rebuilding the
chemical pump or as needed. Remove and
disassemble the check valve. Check the Teflon seat
for debris or abnormal wear. Clean or replace seat if
needed.
NOTE: Improper seating of the check valve poppet,
damaged spring, or o-rings will cause poor operation
of the chemical system.
For the procedure, see the "General Service
Adjustments” section in this manual for details.
CHEMICAL PUMP
Rebuild the chemical pump every 500 hours. This
involves changing the diaphragm and check valves.
For the procedure, see the "Chemical Pump”
section in this manual for details.
NOTE: Inspect chemical filter daily.
CHEMICAL AND HEAT BYPASS VALVES
Examine the packing nut on the chemical selector
valve, heat bypass valve, and chemical metering
valve every 200 hours. Keeping these valve
packings properly adjusted will eliminate possible
leakage from the valve stems and add to overall
valve life.
For the procedure, see the "General Service
Adjustments” section in this manual for details.