12
1. Deflection for each inch of span between pulley
centers with a 6-pound force applied in the middle
of the span.
EXAMPLE: A 6-pound force applied at the middle
of an 8 inch span should produce a deflection of
8/64 inch or 1/8 inch.
2. Belts can be tightened or loosened by loosening
the nuts holding the pump assembly to the motor
mount. Then tighten or loosen the j-bolt on the motor
mount. Retighten the pump assembly after the
desired tension is reached.
1. Remove the spray tip from the gun assembly.
2. Blow out debris with compressed air from the outside
in. Any debris remaining in the inlet side of the
nozzle should be cleaned out. If lime or chemical
scale is present in the inlet side, the nozzle may
be soaked in descaling solution or replaced. If the
tip is worn, replace with one specified in the
GENERAL section of MODEL SPECIFICATIONS
or MODEL EXPLODED VIEW.
3. Before replacing spray tip flush the machine per
“FLUSHING”.
4. Reinstall Spray tip to gun assembly.
A regular maintenance schedule for descaling your
heating coil is essential to insure its longevity.
The frequency of descaling depends upon the amount
of use and the condition of the water.
06-21-06 Z08-02809
Above is a cross section view showing the progressive
liming of coils.
COIL BACK PRESSURE CHECK INSTRUCTIONS
1. Check the condition of your water pump unloader
valve. Remove the hose and gun assembly from
the coil outlet.
2. Remove any flow restrictions, such as guns and
hoses, from the coil outlet.
3. Install a pressure gauge between the water pump
and coil inlet.
4. Turn on the water supply. Check the float valve (if
so equipped) to assure float tank is full and the
float valve shuts off securely.
5. Check the position of the ball valve (if so equipped)
on the outlet line of the float tank assuring it is in
the open position.
6. Turn on the switch to the “PUMP” position. If the coil
back pressure reading is above that found in the
chart above then your machine needs to be
descaled.
A separate descaling pump is recommended so scale
and other chemicals will not come in contact with your
water pump and causes premature wear.
NOTE: Contact your local dealer for descaling of your
machine.
7. Disconnect the water supply.
8. Disconnect the electrical supply.
9. Reinstall the hose and gun assembly.
10. Remove the pressure gauge.
Descaling Instructions are available upon request, ask
for part number Z08-00493.
MAINTENANCE
Electric Driven Oil Fired Machine
DEFLECTION
SPAN
x
SPRAY TIP MAINTENANCE
COIL BACK PRESSURE CHECK
BELT TENSION
50 PSI
75 PSI
100 PSI
150 PSI
175 PSI
DISCHARGE VOLUME
GALLONS PER MINUTE/
LITERS PER MINUTE
2-3 GPM/ 7.6-11.4 LPM
3-4 GPM/11.4-15.1 LPM
4-5 GPM/15.1-18.9 LPM
6 GPM/ 22.7 LPM
8-10 GPM/ 30.3-37.9 LPM
BACK PRESSURE
REQUIRING DESCALING
USE A 1000 PSI PRESSURE GAUGE
Supersedes 08-15-03 Z08-02809
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