65
17-04-2003
01
15-01-2004
DATE
COMPILER TECO/ATI
REG. CODE
1-5302-467
MODEL N°
50707
DATE OF ISSUE
REVISION
ENDORSED
131
XI
132
133
ELECTRICAL SYSTEM
Testing voltage regulator for proper operation
Check that connections correspond to the schematic.
Disconnect the terminal from the battery positive pole.
Connect a d.c. voltmeter between the battery poles.
Fit an ammeter between the positive pole and the B+ on voltage
regulator.
Start and stop the engine a several times until battery voltage drops
below 13V.
When battery voltage reaches 14.5V the ammeter current should
suddenly drop down to almost zero.
Replace regulator if recharge current is zero with voltage below
12,5V.
When the engine is running do not disconnect battery cables
or switch key to "off" position.
Keep regulator away from heat sources above 75°C.
Do no electric welding on engine or application.
Starting motor
Bosch type DW (L) 12V, 1.1 KW for RY 70-75-103-110
Bosch type DW (L) 12V, 0.9 KW for RY 50
Anti-clockwise rotation direction (viewed from pinion side)
A = 17.5-19.5 mm (distance from flywheel rim surface to starter
motor flange surface)
Note: Contact Bosch service centers for repair operations.
Characteristic curves for starting motor type DW (L) 12V, 1.1 KW
The curves were obtained at a temperature of -20°C with 66 Ah
battery.
U = Motor terminal voltage in Volts
n = Motor speed in r.p.m.
M = Torque in Nm
J(A) = Absorbed current in Ampere.
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