Pressure
Control
7093A
Fig
15
131
132
22
64
131
42
134
06964
59
37
130
14
1 Seals
(93) located inside conduit (22)
132
1
Pressure
Control Repair
General Repair and Replacement
WARNING
INJECTION
HAZARD
T
o reduce the risk of serious injury
,
whenever you are instructed to relieve
pressure, follow the
Pressure Relief
Procedure
on page 8.
1.
Relieve pressure.
2.
Remove power cord (23) and plug retainer (23a)
by removing screws (230) and washers (229).
3.
Remove screws (213) and lockwashers (214).
Carefully remove control housing (202) from
control motor board (201) so internal wiring is not
damaged. Lay housing on side next to control
motor board. See Fig. 16 and parts list.
4.
Remove and replace only those components and
wires necessary for repair
. Make a diagram show
-
ing wire hook–ups for items removed to insure
correct wiring when reinstalling. See Fig. 17 for
wiring information.
5.
Install control housing (202) to motor control
board (201) using screws (213) and
lockwashers (214).
Pressure Control Transducer and O–Ring
Replacement
WARNING
FIRE
AND EXPLOSION HAZARD
Proper O–ring replacement is essential
to reduce the risk of fire or explosion
which can result in serious injury and
property damage. Also read
FIRE OR
EXPLOSION HAZARD
on page 2.
NOTE:
Do not replace o–ring unless damaged or if
leakage is seen around weep hole, o–ring or
transducer.
1.
See Fig. 16 and pressure control part list. Disas
-
semble pressure control as in steps 1 through 4 on
page 20 and remove old transducer (219) and, if
necessary
, old o–ring (220).
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