Electrical systems - Engine starting system
Starter solenoid
The starter solenoid is an electromagnetic type solenoid
that is located on the bottom of the starter motor assem-
bly. The solenoid contains two coils, a pull-in coil,
(1)
and a hold-in coil
(2)
When the key switch is turned to
the "START" position and the safety start relay is closed
(safety switches closed), current from the battery will en-
ergize the solenoid's two coils. With the coils energized,
the solenoid plunger,
(3)
pushes a spring
(4)
which will
then push the pinion gear out to engage the flywheel. At
the same time, a set of contacts
(5)
, on the solenoid be-
come closed, allowing current to flow to the starter motor.
Closing the contacts also supplies current to both ends
of the solenoid pull in coil which makes the coil become
non-energized. The hold-in coil continues to engage the
pinion gear with the flywheel.
SEC55CH4PG29_1
2
Pinion clutch
To prevent the engine from driving the starter motor once
the engine is running, the pinion gear is equipped with an
overrunning clutch. The clutch will disengage the pinion
gear from the rest of the starter components once the en-
gine has been started and the key switch is in the "START"
position. The clutch consists of an outer gear/shell,
(1)
, a
cam with tapered notches,
(2)
, rollers,
(3)
, roller springs,
(4)
, a splined pinion collar/tube that acts as a clutch hub,
(5)
, and the pinion shaft,
(6)
. As the starter motor engages
and rotates, the rollers are locked against the pinion collar
with the tension provided by the roller springs. While the
rollers are locked, the clutch assembly is locked, allowing
the pinion gear to rotate the flywheel. When the engine
starts, the flywheel moves faster than the starter motor
and this causes the rollers to become unlocked. With the
rollers unlocked, the clutch assembly is unlocked, allow-
ing the pinion gear and shaft to turn independently of the
starter motor.
SEC55CH4P29_2
3
A -
Engaged, B -
Disengaged
(1)
Clutch Gear
(2)
Cam
(3)
Roller
(4)
Spline Tube - Inner (Pinion Collar)
(5)
Pinion Shaft
(6)
Roller Spring
The clutch is not serviceable and is replaced as a com-
plete assembly.
Once the engine is started and the key switch is released
from the "START" position, the solenoid's pull in coil be-
comes energized, pulling the solenoid plunger in, which
disengages the pinion from the flywheel.
SEC55CH4P29_3
4
47866583_ 02/12/2015
55.5 [55.201] / 4
Summary of Contents for Workmaster 50
Page 2: ...SERVICE MANUAL Workmaster 50 Workmaster 60 Workmaster 70 47866583_ 02 12 2015 EN ...
Page 7: ...47866583_ 02 12 2015 ...
Page 8: ...INTRODUCTION 47866583_ 02 12 2015 1 ...
Page 12: ...INTRODUCTION Advice BT09A213 1 47866583_ 02 12 2015 5 ...
Page 20: ...SERVICE MANUAL Engine Workmaster 50 Workmaster 60 Workmaster 70 47866583_ 02 12 2015 10 ...
Page 53: ...47866583_ 02 12 2015 10 3 10 202 10 ...
Page 59: ...47866583_ 02 12 2015 10 4 10 206 6 ...
Page 65: ...47866583_ 02 12 2015 10 5 10 216 6 ...
Page 73: ...47866583_ 02 12 2015 10 6 10 310 8 ...
Page 80: ...47866583_ 02 12 2015 10 7 10 400 7 ...
Page 82: ...SERVICE MANUAL Clutch Workmaster 50 Workmaster 60 Workmaster 70 47866583_ 02 12 2015 18 ...
Page 98: ...Clutch Clutch and components GNIL14TR04659GB 1 47866583_ 02 12 2015 18 2 18 110 5 ...
Page 116: ...SERVICE MANUAL Transmission Workmaster 50 Workmaster 60 Workmaster 70 47866583_ 02 12 2015 21 ...
Page 121: ...Transmission Mechanical transmission GNIL14TR00824GA 1 47866583_ 02 12 2015 21 1 21 114 4 ...
Page 157: ...47866583_ 02 12 2015 21 2 21 130 10 ...
Page 199: ...Contents Four Wheel Drive 4WD system 23 23 314 Drive shaft 23 1 47866583_ 02 12 2015 23 ...
Page 216: ...Front axle system Powered front axle GNIL14TR04347HA 2 47866583_ 02 12 2015 25 1 25 100 7 ...
Page 241: ...47866583_ 02 12 2015 25 1 25 100 32 ...
Page 247: ...47866583_ 02 12 2015 25 2 25 102 6 ...
Page 255: ...47866583_ 02 12 2015 25 3 25 108 8 ...
Page 263: ...47866583_ 02 12 2015 25 4 25 310 8 ...
Page 330: ...47866583_ 02 12 2015 27 3 27 120 15 ...
Page 363: ...Contents Brakes and controls 33 33 120 Mechanical service brakes 33 1 47866583_ 02 12 2015 33 ...
Page 395: ...47866583_ 02 12 2015 35 1 35 000 10 ...
Page 421: ...Hydraulic systems Main lift system GNIL14TR04655FB 4 47866583_ 02 12 2015 35 2 35 100 26 ...
Page 433: ...47866583_ 02 12 2015 35 3 35 104 8 ...
Page 445: ...47866583_ 02 12 2015 35 4 35 204 12 ...
Page 451: ...47866583_ 02 12 2015 35 5 35 300 6 ...
Page 463: ...Hydraulic systems Main control valve GNIL14TR00834GA 1 47866583_ 02 12 2015 35 7 35 359 4 ...
Page 466: ...Hydraulic systems Main control valve GNIL14TR00836GA 3 47866583_ 02 12 2015 35 7 35 359 7 ...
Page 470: ...47866583_ 02 12 2015 35 7 35 359 11 ...
Page 472: ...SERVICE MANUAL Steering Workmaster 50 Workmaster 60 Workmaster 70 47866583_ 02 12 2015 41 ...
Page 478: ...Steering Steering control GNIL14TR04488JB 2 47866583_ 02 12 2015 41 1 41 101 5 ...
Page 479: ...Steering Steering control 47866583_ 02 12 2015 41 1 41 101 6 ...
Page 528: ...47866583_ 02 12 2015 41 4 41 216 11 ...
Page 530: ...SERVICE MANUAL Wheels Workmaster 50 Workmaster 60 Workmaster 70 47866583_ 02 12 2015 44 ...
Page 531: ...Contents Wheels 44 44 511 Front wheels 44 1 44 520 Rear wheels 44 2 47866583_ 02 12 2015 44 ...
Page 541: ...47866583_ 02 12 2015 44 1 44 511 10 ...
Page 546: ...Index Wheels 44 Rear wheels 520 Rear wheel Adjust 3 47866583_ 02 12 2015 44 2 44 520 5 ...
Page 570: ...Electrical systems Harnesses and connectors SHT_2 1 47866583_ 02 12 2015 55 4 55 100 5 ...
Page 572: ...Electrical systems Harnesses and connectors SHT_3 1 47866583_ 02 12 2015 55 4 55 100 7 ...
Page 574: ...Electrical systems Harnesses and connectors SHT_4 1 47866583_ 02 12 2015 55 4 55 100 9 ...
Page 576: ...Electrical systems Harnesses and connectors SHT_5 1 47866583_ 02 12 2015 55 4 55 100 11 ...
Page 578: ...Electrical systems Harnesses and connectors SHT_6 1 47866583_ 02 12 2015 55 4 55 100 13 ...
Page 580: ...Electrical systems Harnesses and connectors SHT_7 1 47866583_ 02 12 2015 55 4 55 100 15 ...
Page 582: ...Electrical systems Harnesses and connectors SHT_8 1 47866583_ 02 12 2015 55 4 55 100 17 ...
Page 584: ...Electrical systems Harnesses and connectors SHT_9 1 47866583_ 02 12 2015 55 4 55 100 19 ...
Page 586: ...Electrical systems Harnesses and connectors SHT_10 1 47866583_ 02 12 2015 55 4 55 100 21 ...
Page 588: ...Electrical systems Harnesses and connectors SHT_11 1 47866583_ 02 12 2015 55 4 55 100 23 ...
Page 590: ...Electrical systems Harnesses and connectors SHT_12 1 47866583_ 02 12 2015 55 4 55 100 25 ...
Page 597: ...Electrical systems Harnesses and connectors 47866583_ 02 12 2015 55 4 55 100 32 ...
Page 667: ...47866583_ 02 12 2015 55 4 55 100 102 ...
Page 715: ...47866583_ 02 12 2015 55 10 55 408 18 ...
Page 1032: ...47866583_ 02 12 2015 55 12 55 DTC 311 ...
Page 1049: ...47866583_ 02 12 2015 90 2 90 110 6 ...
Page 1062: ...47866583_ 02 12 2015 90 4 90 118 7 ...
Page 1066: ...47866583_ 02 12 2015 ...