SHOP MANUAL
Paragraphs 62-65
Fig. 66—Exploded
view of starter used
on Models L285,
L295, L305, L345 and
L355.
.1 Frame
2.
Brush
3.
Armature
4.
Gasket
5.
Brush holder
6. Brush spring
7.
Gasket
8. Magnetic switch
assy.
9. Ball
10.
Pinion gear
&
clutch
assy.
11.
Reduction gears
12.
Drive end frame
9
10
Make certain match marks are aligned
when assembling end frames.
STARTER MOTOR AND
MAGNETIC SWITCH
All Models
62.
To check starter and switch
operation, disconnect lead from C ter-
minal (Fig. 88) of magnetic switch and
connect battery positive terminal direct-
ly to starter C lead. Connect battery
negative terminal to starter frame. If
motor runs smoothly, magnetic switch is
defective; if not, motor is defective.
Magnetic switch pull-in coil and hold-in
coil should operate porperly with V2 of
rated voltage (six volts) applied to
switch terminals. Renew magnetic
switch as a unit if defective.
Refer to Fig. 84, 85 and 86 for explod-
ed view of starter motors. When servic-
ing starter motor, check armature and
field coils for shorted or open circuits
an(i renew as needed. Check armature
bushings and bearings for excessive
wear and renew as necessary. Minimum
allowable brush length before renewal is
10.5 mm (0.4 inch) on Mociel LI85 and
12.7 mm (0.5 inch) on all other models.
FMnion engagement depth is set by ad-
justing magnetic switch hook (H-Fig.
84 or
85).
With starter pinion in engaged
position, distance between stop collar (8)
and pinion should be 0.1-0.1 mm
(0.004-0.016 inch) on Model L185 and
0.1-0.5 mm (0.004-0.020 inch) on Models
L2.S5,
L245 and L275.
CLUTCH
ADJUSTMENT
All Models
6H.
Clutch |)edal free travel should be
measured at tof) of i)edal. Adjust length
of clutch linkage rod (l-p'^ig. *)]) as
necessary to obtain following recom-
mended free travel: 25-:^5 mm (I to 1%
inches) on all models except Models
L235 and L275 with dual stage clutches
which should be 30-40 mm (1-3/16 to
1-9/16
inches). On all models, make cer-
tain clutch releases completely after ad-
justing free travel and readjust if
Fig. 91—Measure ciutch
pedai free travei at top of
pedai. Adjust length of
ctutch rod (1) to obtain
recommended free travel.
Adjust safety start switch
ciearance (A) as necessary.
Refer to text
necessary.
Adjust safety start switch (Fig. 91) to
obtain recommended gap between
switch and operating arm. On Model
L355,
clearance should be 2.0-3.0 mm
(0.080-0.120 inch). On Models L235 and
L275 with dual plate clutch, clearance
should be
1.0-2.0
mm (0.040-0.080 inch).
On all other models, clearance should be
0.5-1.0 mm (0.020-0.040 inch). Make cer-
tain starter will not ope'rate until clutch
pedal is fully depressed.
REMOVE AND REINSTALL
All Models
64.
CLUTCH SPLIT. To separate
(split) tractor between engine and clutch
housing, proceed as follows: Remove
muffler and hood. Disconnect battery
cables. Drain oil from transmission
housing, power steering reservoir (if so
equipped) and engine oil. On models
equippe(i with front-wheel drive, detach
drive shaft. On all models, disconnect
steering drag link and booster cylinder
(if so equipped). Disconnect wiring as
necessary at alternator, starter, glow
plugs,
safety switch, oil pressure switch
and water temperature switch. Discon-
nect engine stop rod (if so equipped),
throttle control rod, decompressor con-
trol cable, tractor meter cable and
hydraulic tubing as needed. Shut off fuel
and disconnect fuel supf)ly pi]:>e and fuel
return pipe. Support engine and
transmission witti suitable splitting
stands or overhead hoist. Remove
engine mounting bolts, then separate
engine from flywheel housing.
Reconnect tractor by reversing split-
ting procedure. Tightening retaining
bolts to a torque of 50-56 N-m (37-41
ft.-lbs.)
OVERHAUL
Single Plate Clutch
65.
Refer to Fig. 93 for an exploded
view of single plate clutch assembly.
Clutch cover and pressure plate (2) are
available only as an assembly; all other
components are available individually.
Check backlash between clutch disc
and main shaft splines. Backlash should
not exceed 2.0 mm (0.080 inch). Check
clutch facing wear by measuring from
clutch disc surface to top of rivet. If
depth is less than 0.3 mm (0.012 inch),
renew clutch disc. Fl,enew clutch disc if it
is warped, burned or oil soaked. Check
pressure plate flatness using a
straightedge and feeler gage. Plate
should be flat within 0.2 mm (0.008
inch).
Inspect release bearing for ex-
cessive wear or roughness when turned
and renew as needed.
31
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