Dnepr MT9 - Page 112

l
The travel of the movable contact between the fixed one s must
be
set within 0.25 and 0.30 mm by bending the travel arrester of
the voltage regulator armature.
Misalignment of contact axes must be not greater than 0.2 mrn.
The gap between the armature and core of the reverse-current
relay is to be set within 0.6 and 0.8 mm with the contacts opened .
The
contact gap should be not less than 0.25 mm. Misalignment of
co
nt act axes must not be greater than 0.25 mm.
5. CURRENT-AND-VOLTAGE REGULATOR PP330
The motorcycle "Dnepr" MTIO is provided with a current-and-
yoltage regulator PP330.
The basic difference between this type of the regulator and the
e arlier models is that it is used in the a. c. generator set circuit.
Type . . .
Rated voltage, V
Rated cur rent , A
Design
N umb er of elements, pes
Ambient temperature range
Specifications
PP330
12
8
electromag n etic, single -
stage
2
- 40 to +70 °C
The current-and-voltage regulator maintains the voltage at the generator ter-
minals within the specified limits and controls the battery charge cont rol lamp:
when the battery is discharged , the lamp comes on. when charged, the lamp
is out.
The current-and-voltage regulator is a dust-tight device, co nsisting of a vib-
rator-type voltage regulator and relay for switching on the charge control lamp.
that are mounted on a common panel and enclosed in a common case.
As regards its c haract eristics, the current-a nd-voltag e regulatoF must comply
with the data listed in Table 14.
Table 14
Basic c haract e risti cs
--~
Num erical
Remnrks
0:>
va lu es
E .
_.,_
-- t"J c
'-'0
"' " " ::::z ;::) E E
1
Operating voltage of cha rg e con!col
v
6.2 to 6.8
2
lamp relay
Regulated voltage at +20 °C tempe- v 13.3 to 14.3
rature of current-and
voltage regu-
Ialor and env ironment, at generator
rotor speed of 3500 r.p.m. a nd lo ad
current of 4 A
3
Same at a temperature of
+70 °C
v 12.8 to 14.5
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