ELECTRICAL EQUIPMENT—Q.18
ALTERNATIVE METHOD OF ASSEMBLY IN
PLACE OF PARAGRAPH 3
Assemble commutator shield, yoke, drive end and
armature together temporarily without shims at the
commutator end and measure distance between pinion
face and flange with the shaft pushed towards the drive
end.
Dismantle
starter
and
add
shims
inside
commutator end shield on the shaft to give 1 in 0.002
in (47,63 0.05 mm) between flywheel and starter
flange face. Then assemble commutator end-shield and
add shims on the shaft between commutator end shield
and the shaft circlip so that the armature end float is
0.062 —0.072 in (1,57—1,83 mm). This gives the
desired 1/16 in (1.6 mm) float on the armature assembly.
A simple tool for this purpose is shown in Fig. Q.14. The
measurement from the square base to the cross
member is 1.877 in (47,68 mm) on one side and 1.900 in
(48,26 mm) en the other, so that with feelers, the correct
size shims can be ascertained.
TEST PROCEDURE
TESTS ON COMPLETE STARTER
1.
Ensure there is NO connection to the main
terminal.
2.
Pull the pinion forward by hand, approximately
1/16 in (1,6 mm) and let go. The pinion should
return to its original position.
3.
Energize the solenoid, by means of a battery
connected between the solenoid terminal (46)
Fig. F.10 and the earth terminal on the
commutator end-shield. The pinion must move
forward 1 in (6,35 mm) minimum.
4.
With the solenoid still energized, pull the pinion
slowly forward by hand. The trip collar must act
upon the trigger at least k in (3,18 mm) before
the pinion reaches its stop. It is possible to feel
this action taking place.
5.
With the pinion at the end of its outward travel,
the ball-lock device should now have come into
operation, locking the pinion. There must be
approximately 0.005 0.010 in (0,127 — 0,254
mm) play between the pinion and shaft stop.
6.
Apply a spring load pressure of 30 lbf (13,6 kgf)
to the pinion face, by means of a compression
spring balance. The pinion must remain in the
forward position.
7.
Remove the solenoid connection. The pinion
must now return to its normal position in one
sharp movement.
FIG. Q.14.
