Chrysler 1991 Service Manual Supplement page 11

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5 - 4
BRAKES
J9105-98
Fig,
8 Pump
Assembly
Removal
(2) Remove vacuum pump from adapter (Fig. 9).
Turn pump gear back and forth to disengage pump
shaft from coupling if necessary.
(3) Inspect adapter O-ring (Fig. 9). Replace O-ring
if cut or torn.
COUPLING
O-RING
PUMP
ADAPTER
J9105-99
Fig,
9 Vacuum
Pump
Removed
From
Adapter
(4) Lubricate adapter O-ring with engine oil.
(5) Note position of drive slots in coupling. Then ro-
tate drive gear to align tangs on vacuum pump shaft
with coupling (Fig. 10).
(6) Verify that pump is seated in adapter and cou-
pling.
(7) Install and tighten pump attaching nuts and
washers.
PUMP ADAPTER REPLACEMENT
(1) Remove coupling from adapter (Fig. 11).
(2) Remove remaining adapter attaching nuts and
remove adapter from steering pump (Fig. 12).
(3) If steering pump will be serviced, remove spacer
from each inboard mounting stud on pump (Fig. 12).
(4) Clean and lubricate pump shaft with engine oil.
ROTATE DRIVE
GEAR TO ALIGN
TANGS
J9105-102
Fig.
10 Aligning
Pump
Shaft
Drive
Tangs
Fig.
11 Removing/installing
Pump
Drive
Coupling
(5) Install spacers on steering pump studs (Fig. 12).
(6) Install O-ring on adapter (Fig. 11).
(7) Position adapter on pump studs.
(8) Install attaching nuts on outboard stud and on
the two upper pump studs. Do not install nut on
lower, inboard stud at this time. Tighten nuts to 24
N-m (18 ft. lbs.) torque.
(9) Install coupling on pump shaft. Be sure cou-
pling is securely engaged in shaft drive tangs.

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1991 d&w 2501991 d&w 350

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