Table of Contents
Advertisement
CAUTION
Do not install the pressure control until motor is
checked. A defective motor may damage the pres-
sure control. Make sure to test the motor prior to
pressure control installation.
WARNING
ELECTRIC SHOCK HAZARD
To reduce the risk of Electric Shock: wait
5 minutes after turning sprayer off before
servicing to allow stored current to dis-
charge.
Motor Test
With motor shield off and four motor leads discon-
nected:
Check continuity with multimeter from each black
motor lead to ground (one at a time). Any reading
less than infinite resistance – even very high re-
sistance – means motor is shorted to ground. Re-
place motor.
CAUTION
A motor that is shorted to ground will damage the
pressure control.
2. Remove fan cover from motor.
3. Remove pump pin ( See page 16 for instructions to
remove pin).
4. With black motor leads not connected, use motor
fan to spin motor quickly. Motor should spin freely
in both directions. If not, replace motor.
5. Connect black motor leads together.
6. Use motor fan to turn motor. It should be much
harder to turn than in step 4. If there is uneven or
no resistance to turning, check brushes and re-
place if necessary.
7. If there is still uneven or no resistance to turning,
replace motor.
Pressure Control
8. Install pump pin and fan cover.
1. Relieve pressure.
2. Remove ten screws (64) and motor shield (14).
3. Loosen outlet cover on pressure control wiring box
4. Loosen black conduit (22) from pressure control
5. Remove hose (132), 45 swivel union (131), check
6. Remove hose (134) and 45 swivel union (131)
7. Support pressure control from falling(130) and
8. Install new pressure control (130) with screws (37).
9. Continue to reassemble sprayer.
Fig 14
WARNING
INJECTION HAZARD
To reduce the risk of serious injury,
whenever you are instructed to relieve
pressure, follow the Pressure Relief
Procedure on page 8.
See Fig. 15 and parts list.
and disconnect wires. See Fig 14.
fitting and pull out wires
valve (42), and nipple (59) from rear of pressure
control (130).
from front of pressure control (130).
carefully remove motor mount screws (37). Re-
move pressure control.
Red
Black
Black
Yellow
Advertisement
Table of Contents
