Tennant 140, Руководство оператора и каталог запасных частей

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MAINTENANCE
3-7
140 MM130 (6--91)
IGNITION SYSTEM
The engine ignition system on machines with
serial numbers up through 4821 consists of a set
of breaker points, condenser, armature coil, and
flywheel. This ignition system should be checked
on a yearly basis.
The engine ignition system on machines with
serial numbers 4822 and above consists of the
Magnetron
t
ignition. This ignition system needs
no regular inspection. The flywheel does not have
to be removed to service the Magnetron
t
module as it is mounted on the armature. To time
engine, position armature bracket so its three
mounting screws are centered in the mounting
slots.
TO CHECK AND ADJUST STANDARD
IGNITION SYSTEM
1. Stop the engine and let it cool. Remove the
spark plug wire.
FOR SAFETY: When Servicing Machine, Allow
Engine To Cool.
2. Remove the blower housing, flywheel,
armature, and breaker cover.
3. Turn the crankshaft until the breaker points
open to their widest gap. Check the
condition of the breaker contacts. Clean or
replace breaker points.
4. Check the gap width. It should be 0.020 in
(0.5 mm). To adjust the gap, move the
condenser forward or backward with a screw
driver.
A
B
C
D
01789
ADJUSTING BREAKER POINT GAP
A. Gauge
B. Crankshaft Keyway
C. Condenser
D. Breaker Points
5. Open the breaker points and position a
piece of lintless paper between the contacts.
Pull the paper through the contacts. Open
the contacts to remove the paper so no
paper remnants will remain.
6. Replace breaker cover. Apply sealant to the
wire opening in the cover.
7. Replace the flywheel. Torque the flywheel
nut to 55 ft lb (75 Nm).
8. Position the armature up as far as possible
and tighten one screw to hold the armature
in place.
C
B
A
01790
ENGINE ARMATURE
A. Armature
B. Flywheel
C. Armature Screw
9. Turn the flywheel until magnets are directly
below the armature. Position a 0.006 to
0.010 in (0.15 to 0.25 mm) gauge between
the armature and the flywheel. Loosen the
one armature screw. The magnet should
draw the armature against the gauge.
Thread in and tighten the armature screws.
Remove the gauge.
10. Replace the blower housing and spark plug
wire.
11. Start the engine and check for proper
operation.