Graco LineLazert III 3900 Instructions-Parts List Manual page 11

Removal
1.
Relieve pressure; page 4.
2. Fig. 6. Remove four screws (93) and
display/cover (139).
3. Pull display connector wings (A) open on PC board
and pull display connector out.
4. Disconnect ON/OFF switch connector (B) from PC
board.
5. Press in on two retaining tabs on each side of
ON/OFF switch (24) and remove switch.
139
93
169
24
Back View (42)
Z
Y
Fig. 6
On/Off Switch
214
109
214
A
B
Installation
1. Install new ON/OFF switch (24) so tabs of switch
snap into place on inside of pressure control
housing.
2. Connect ON/OFF switch connector (B) to PC
board.
3. Push display connector into PC board close dis-
play connector wings (A) on PC board.
4. Install display/cover (139) with four screws (93).
108
F
E
D
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