SprayTECH 509009, Руководство пользователя

Страница: 10 / 28

Replacing the Transducer
Electrostatic discharge (ESD) potential could cause
damage to electronic pressure control. Use SprayTECH
ESD wrist strap P/N 0507958 or equivalent when working
on electronic pressure control.
1. Perform the Pressure Relief Procedure.
2. Using a Phillips
screwdriver, remove
the four screws that
secure the electronic
pressure control
(EPC) assembly to the
EPC housing.
Carefully remove the
EPC assembly from
the housing. Gently
move the assembly
away from the sprayer
and allow the assembly to hang from the housing.
3. Locate the transducer wire in the EPC housing. This wire
will be protruding from a hole in the lower left hand corner
of the EPC housing. Disconnect this wire from the EPC
board (it has a phone jack-style connector).
4. Break off the locking tab from the phone jack-style
connector at the end of the transducer wire.
5. Using a 7/8” open-end wrench, loosen and remove the
fluid hose from the fitting on the bottom of the filter
assembly.
6. Using a 9/16” open-end wrench, loosen and remove the
return hose from the bottom of the filter assembly.
7. Using a 1/2” socket, remove the two hex screws that
secure the filter assembly to the cart.
8. Lift the filter assembly off the cart so that the transducer
tube moves out of the hole in the gear housing. Gently
pull the transducer wire through the housing until it is fully
disengaged from the hole.
9. Mount the filter assembly in a vise for easy access to the
transducer.
Do not over-tighten the vise.
10. Using a 3/4” open-end wrench, turn the transducer nut
counterclockwise to remove the transducer from the filter
housing.
11. Locate the new transducer. Make sure that there is a
white, Teflon o-ring on the end of the transducer that gets
inserted into the filter housing.
12. Insert the transducer into the filter housing port. Rotate
the transducer nut clockwise to tighten it into the filter
housing. Torque the nut to 360–400 in./lbs.
13. Remove the filter assembly from the vise.