I
st re-issu�
Page 12
all climatic conditions. In cold weather the volta'ge
required to charge the battery increases, whilst in
warm weather the voltage of the battery is lower.
The method of compensation takes the form of a bi
metallic spring suspension for the armature of the
regulator which causes the operating voltage of the
regulator to be Increased in cold weather and re
duced in hot weather, and thereby to compensate
for the variations In charging current which would
otherwise occur due to the changing characteristics
of the battery.
The Cut-out
The cut-out Is an automatic switch connected
between generator and battery. It consists of a
pair of contacts held open by a spring and closed
magnetically when the engine Is running fast enough
to cause the generator voltage to exceed that of the
battery. The battery will then be charged by the
generator. On the other hand, when the speed Is
low or the engine Is stationary the contacts open,
thus disconnecting the generator from the battery
and preventing current flowing from the battery
through the windings.
SETTING DATA
Regulator
Open circuit setting at 1,500 dynamo r.p.m. differs
according to temperature, as follows:-
Temperoture
Volts
10
°
C. (50
°
F.)
16·1-16·7
2 0
°
C. (68
°
F.)
16·0-16·6
30
°
C. (86
°
F.)
15·9-16·5
40
°
C. (104
°
F.)
15·8-16·4
Cut-out
Cut-In voltage
Drop-off voltage ... .
Reverse Current .. .
SERVICING
12·7-13·3
8·5-11·0
3·5- 5·0amp
Testing in position to locate fault in
charging circuit
If the generator and battery are In order, check as
follows:-
1. Ensure that the wiring between battery and
regulator Is In order. To do this, disconnect the
REGULATOR VOLTAGE
ADJUSTING SCREW
WSM.124
Section N (Elec. Equip.)
CUT-OUT
ADJUSTING SCREW
Fl1. 10. Cut-out
and regulator
assembly
wire from control box terminal "A" and con
nect the end of the wire removed to the
negative terminal of voltmeter.
Connect the positive voltmeter terminal to an
earthing point on the chassis. If a voltmeter
reading is given, the wiring Is in order and the
regulator must be examined.
2. If there Is no reading, examine tne wiring
between battery and control box for defective
cables or loose connections.
3. Re -connect the wire to terminal "A".
Regulator Adjustment
The regulator Is carefully set during manufacture
and, in general, it should not be necessary to make
further adjustments. If, however, the battery does
not keep In a charged condition, or If the generator
output does not fall when the battery Is fully
charged, the setting should be checked and, If
necessary, corrected.
It Is Important before altering the regulator setting
to check that the low state of charge of the battery
Is not due to a battery defect or to slipping of the
generator belt.
(1)
Electrical
Setting
It is Important that only a good quality MOVING
COIL VOLTMETER (0-20 volts) Is used when check
ing the regulator .
The electrical setting can
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...