Pump Control; Removal; Installation - Graco 257369 Repair Manual

Pump Control

Removal

1. Remove two screws (71) and swing cover (70a)
down.
71
71
70a
2. Disconnect pump control (70p) lead from control
board (70c).
70p
3. Loosen set screws on pump control knob (70k) and
remove knob, shaft nut, lock washer and pump con-
trol (70p).
70k
ti13207a
4. Remove shaft spacer (70n) from pump control.
313889E
ti13709a
ti13251a
70n
ti14417a

Installation

1. Install shaft spacer (70n) on pump control (70p).
2. Install pump control, shaft nut, lock washer, and
pump control knob (70k).
ti14417a
70k
a. Turn pump control shaft clockwise to internal
stop. Assemble pump control knob to strike pin
on cover (70a).
70k
b. After adjustment of step a, tighten both set
screws in knob 1/4 to 3/8 turn after contact with
shaft.
3. Connect pump control lead to control board (70c).
70p
4. Swing cover (70a) up and secure with two screws
(71).
70a
71
Pump Control
70p
70n
ti13338a
ti13251a
ti13717a
23