Starting System Inspection; Starter Motor Inspection; Solenoid Starter Inspection; Solenoid Starter Wiring Diagram - Husqvarna TC449 Workshop Manual

A
�
�
�
1 edition (08-2010)_Rev. 11-2010
st
ELECTRICAL SYSTEM

STARTING SYSTEM INSPECTION

Starter motor inspection

Remove the starter motor (1) as described in the relevant paragraph.
Whenever a starter motor fault is detected, check the starter motor as follows:
- connect a meter across ground and starter motor contact.
- Check for continuity between the positive pole and motor ground. If no conti-
1
nuity is found, replace the starter motor. On assembly, apply a small amount of
LOCTITE 243 to the starter motor retaining screws.
Starter motor
Rated voltage: 12V
Current draw: 450 W
H06305
No-load test
Voltage: 11.25 V
Current: 30 A
Speed: 12,000 rpm

Solenoid starter inspection

Disconnect the cables at the battery negative terminal to avoid possible short
circuits during disassembly. Disconnect the starter relay connector (A).
Disconnect the starter motor and battery positive cable wires at relay end. Apply
12 Volts to relay terminals (1) and (2) and check for continuity between terminals
B-M. Do not feed battery voltage to the starting relay longer than 5 seconds
or the relay might overheat, leading to winding damage. Use a multimeter
to establish whether the winding is open circuit or resistance exists. A winding
in good condition will give the following resistance readings.
Meter scale setting: Ohm
Starter relay resistance. Standard: 3-6
H06306

Solenoid starter wiring diagram

1= 30A fuse
2= + 12V to starter motor
�
������
M.31
.