Centronics 101AL Technical Manual page 85

DRIVING MECHANISM
Reverse Clutch (HB-139)
a.
Disengage belt (HB-49) between intermediate shaft with
pulley (HB-80) and reverse pulley (HB-60).
Remove screws (HB-52) and two washers (HB-96) from
bracket (HB-51) and slide off bushing (HB-53) with bracket
from shaft.
Remove sleeve (HB-62) from shaft.
Loosen set-screws (HB-61), and remove reverse pulley
(HB-60).
Remove spring (HB-144), hub (HB-143) and splined armature
(HB-142).
Slide clutch rotor (HB-141) over shaft, and remove both
key (HB-64) and rotor.
Forward and Reverse Field Assemblies (HB-140) and Main Belt
Pulley (HB-63)
da.
Cut forward clutch field assembly wires No. W39 (brn/yel)
and W40 (red/blu) (See Fig. 8-3A). Ensure that wires are
properly identified prior to cut. Note that two blue wires
emerge from the clutch field assembly and join these color
coded wires. (Refer to Wiring Diagram 63002333, Section 7)
Cut reverse clutch field assembly wires No. W34 (red/pur)
and W43 (brn/grn) (See Fig. 8-3A). Ensure that wires are
properly identified prior to cut. Note that two blue wires
emerge from the clutch field assembly and join these color
coded wires. (Refer to Wiring Diagram 63002333, Section 7)
Free mounted forward and reverse field assemblies (HB-140)
by loosening two screws, washers and brackets (HE-72, 73,
71) from right side of main frame (HE-1) and sliding each
bracket away from field holder tabs A and B (Figure 8-3A).
Slide main belt pulley (HB-63) off slide. Retain key
(HB-64) ,
For complete assembly replacement of forward and reverse
clutches and main motor pulley, reverse steps of paragraph
5.2.3.2.E, Steps 1, 2 and 3.
Note
When assembling forward and reverse
clutch and shaft parts, begin assembly
by adjusting main motor pulley (HB-63),
keys (HB-64) spacer -(HB-109) and clutch
field assemblies (HB-140) on center of
shaft.
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