WSM. 114
Section E (Gearbox & Overdrive)
Inserted, the solenoid plunger must be adjusted.
Adjustment is effected by screwing the self-locking
nut on the plunger in or out, with the plunger
pushed into the solenoid as far as it will go. The
solenoid spindle must be held against rotation by
using a suitable spanner. All units have two
milled flats on the spindle for spanner access. The
fork on the solenoid lever should just contact the
nut with the .p.
w
(4·76 mm.) rod In position.
Ensure that with the control In the overdrive
position the setting rod can be inserted, and that
the solenoid current does not exceed 2 amperes.
If the current is maintained in the order of 15 to
17 amperes, it is an indication that the solenoid
plunger Is not moving far enough to switch from
the operating to the holding coll, and the plunger
must be readjusted. This is Important, as high
amperage will cause solenoid failure.
If the solenoid does not operate, the electrical
circuits should be checked. Circuit diagrams are
shown In Figs. 13, 13A and 14.
Overdrive Isolator Switch Adjustment
The Isolator switch is mounted In the gearbox top
cover. It is operated, that is to say closed, by an
abutment on the selector lever safety latch when the
latter moves into the third and top gear plane.
Correct adjustment is most Important because:-
1. The switch must ensure engagement of over
drive when this is selected In third and top gears
and must maintain the electrical circuit to keep
overdrive "In".
2. The switch must ensure that Overdrive does
NOT engage In first, second or reverse gears.
To Check Adjustment:-
1. Switch on the ignition but do not start the
engine.
2. Move the overdrive facla·swltch to OVERDRIVE.
3. Engage third or top gear; the safety latch will
move over to the left pressing on the switch
plunger. The switch Is then closed.
4. As the switch CLOSES a distinct "click"
from the overdrive relay will be heard and the
warning light will illuminate on laterAlplne and
Rapier cars.
5. Move the gear lever back into NEUTRAL and
through the neutral "gate" towards first and
second.
6. The isolator switch should OPEN as the lever
Is moved through the NEUTRAL "gate"
3rd re-issue
Page 17
((
�
I-
Fl1.
11.
Gearbox top cover showing selector lever and safety
latch with isolator switch abutment
denoted by a further audible "click" from the
relay and the warning light going out on later
Alpine and Rapier cars.
7. The Isolator switch MUST be fully OPEN In
the first and second speed range and will auto
matically be OPEN In the reverse range.
8. Engage first or second gear, operate the
steering column switch and ensure that the
overdrive relay and solenoid do not operate
denoting Isolation of overdrive In first and
second gears.
9. Road test to confirm correct adjustment
Overdrive will engage and remain engaged in
third and top with steering column switch at
Overdrive, and WILL NOT engage In first and
second.
To Adjust:-
1. Remove rubber cover from switch and dis
connect leads.
2. Unscrew switch from gearbox top cover and
remove shims.
3. Screw switch up and down in top cover to
obtain the setting previously described.
4. Measure with feelers the gap between the
switch head and the top cover face.
5. Insert shims to the required thickness and
tighten switch in top cover.
The required shims are obtainable under the
part number P.112524.
6. Check setting as described under "Isolator
Switch-To check adjustment".
Summary of Contents for ALPINE I SERIES: APLINE II SERIES
Page 1: ......
Page 189: ...Fis 21 Ball pin heirht checkinr fixture in position Details of items 1 to 4 In Fig 22...
Page 208: ...Fla 3 Exploded view of rear axle Hypoid Bevel Drive...
Page 220: ...Page 16 WSM 12 f Section G Rear Axle 0 QQ I I I I I t 0 ii 8 ts t 0 Cl 2 i J...
Page 247: ...Page6 WSM 124 Section J Steering N Iii it...
Page 299: ...Page 40 3 6 7 8 Fis 22 Se rvo unit exploded view Sect WSM 124 ion K Brakes 18 419 GZo 21...
Page 413: ..._ PRINTED IN ENGLAND 9Y WREN PRINTING CQ LTD LONDON...