Repair; Prepare The Motor For Repair; Replace Shaft Bearing Assembly - Graco 273199 Repair Parts

Electric motor for sanispray hp 750
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Repair

Repair
The pump remains pressurized until pressure is
manually relieved. To help prevent serious injury from
pressurized fluid, such as skin injection, disinfectant
splashing and moving parts, follow the Pressure
Relief Procedure detailed in your sprayer manual. To
prevent electric shock, turn off the sprayer and unplug
the power cord. To avoid tipping over, make sure the
cart is on a flat and level surface. Failure to do so
could result in injury, such as crushing. Follow the
Prepare the Motor for Repair procedure before
performing any repair procedure.

Prepare the Motor for Repair

Before performing any service or repair on the motor,
always follow the steps below:
1. Follow the Flushing and Cleaning procedure and
the Pressure Relief Procedure in your sprayer
manual. Ensure the pump has stopped at the bottom
of its stroke. See Related Manuals on page 2.
2. Verify that the sprayer power switch is turned off and
the power cord is unplugged.
Replace Shaft Bearing
Assembly
1. Follow the Prepare the Motor for Repair procedure.
2. Follow the Disconnect the Pump procedure in your
pump repair manual.
3. Drain the oil from the motor (A). See Change the Oil
on page 19.
8
4. Reinstall the oil drain plug (15). Torque to 18-23 ft-lb
(25-30 N•m).
5. Unscrew the shaft bearing assembly (14) from the
motor (A). See Parts, page 20.
6. Install the new shaft bearing assembly (14). Torque to
175-200 ft-lb (240-280 N•m).
7. Fill the motor (A) with oil. See Change the Oil on
page 19.
8. Reconnect the pump (B) to the motor. See your Pump
manual.
15
14
3A7940A

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