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Rev. E
DRIVING MECHANISM - AE -
(2)
1. Adjust main drive belt tension, by turning adjusting nuts
(AA-105) on belt tension axle (AA-I06).
2.
For correct operating tension, adjust belt so that movement
(at midway point) corresponds to a hand depression of 500
grams (17.6 oz.) for a maximum downward distance of 6 to 8 mm
(0.2-0.3-in.).
CARRIAGE
500 GRAMS
(17 . 6 OZ.)
------l'-------
6-8 MM
(0.2 - 0.3-IN.)
Figure 5-5. MAIN MOTOR BELT ADJUSTMENT (AE-9)
B.
FORWARD CLUTCH, ROTOR/ARMATURE (AIR-GAP) (FIG. 5-6)
AE-18
To ensure smooth and even clutch action, uniform clearance should
exist between the engaging surfaces of the armature (AE-3-3) and
rotor (part of AE-3) of the clutch unit.
1. Perform para. 5.2.5.2 B.1.(a) through (i) prior to adjusting
clutch unit.
2. To adjust for clutch gap, perform the following steps:
(a) Loosen three lock nuts on armature (AE-3-3).
(b) Using an allen-wrench on the adjusting screws, adjust
a clearance of 0.002-0.006 thousandths inch max.
(0.06-0.16
mm)
between armature and rotor.
(See Figure
5-6)
(c) Tighten lock nuts and reverse disassembly steps
(para. 5.2.5.2 B.1., steps (a) through (i) to install
clutch unit.
.
Note
Ensure that drive pulley (AE-18) is
solidly against the clutch armature
when completing the assembly ad-
justments.
5-18
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