SkyTrak 6036 Service Manual User Manual

Page 209

Advertising
background image

Section 10.

Electrical System

Model 6036 S/N 9B0499 and Before

10-15

relative to the flywheel. When the teeth become
aligned, spring pressure slides the pinion into
mesh with the flywheel.

When the pinion is properly engaged with the
flywheel teeth a pair of contacts are closed in the
rear of the unit. Closure of the contacts connects
the motor to the battery, the armature rotates and
the starter pinion cranks the engine.

When the engine fires, the operator returns the
ignition key to the run position, the solenoid unit is
de-energized and the spring-loaded plunger in the
solenoid withdraws the starter pinion to its out-of-
mesh position. The armature (9) is brought rapidly
to rest by the centrifugal action of a pair of spring-
loaded brake shoes (16) bearing against a brake
drum inside the intermediate bracket (7).

If the pinion jams in mesh (this may occur with an
engine which fails to start) there is sufficient slack
in the engagement lever-to-solenoid plunger
linkage to permit the solenoid switch contacts to
open.

If the drive remains in mesh with the flywheel after
the engine has run up to speed, the starter motor
armature is protected from over speeding by the
plate clutch assembly. This clutch allows torque to
be transmitted from the starter motor to the engine
but not from the engine to the starter motor.

The clutch is set to slip at between two and three
times normal starting torque, thus providing
overload protection for the starter motor.

b. Removal

Remove the starter only if it fails the tests listed in
paragraph 10.5.2. To remove the starter:

1.

Disconnect negative (–) cable (2, Fig. 10.38)
from the batteries.

2.

Tag and disconnect the negative ground cable
(1, Fig. 10.15) from the starter.

3.

Tag and disconnect the positive cable (2) and
other wiring (3, 4, 5 and 6) from the starter
solenoid (7), paying attention to the sequence
in which the wires are installed on the termi-
nal.

4.

Loosen but do not remove the three hex nuts
(8) that secure the starter to the flywheel
housing. Be careful when you remove the
nuts because the starter is heavy and it will fall
if not supported. Using one hand to support
the starter, remove the nuts (8) and lock
washers (9) and lift the starter (10) from the
forklift.

c.

Disassembly

Disassemble starter only as required by the
periodic maintenance recommendations in para-
graph h.

d. Cleaning and Drying

1.

While the starter is out wipe away any grease
or dirt that has accumulated around the starter
hole.

Fig. 10.15 Starter Removal

5.

Wire 5

6.

Wire 19

7.

Starter solenoid

8.

Hex nuts

9.

Lock washers

1.

Starter negative ground cable

2.

Positive cable

3.

Wire 29

4.

Wire 27

10. Starter
11. Battery terminal
12. Starter motor terminal
13. Ignition switch terminal

1

6

7

8

9

10

11

12

5

13

2

3

4

MA0981

Advertising