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D D i i s s a a s s s s e e m m b b l l y y a a n n d d A A s s s s e e m m b b l l y y
Disassembly
1. Remove plate (33318) on link chain models; remove chain stripper (33319) on roller chain models.
2. Place brass or wood block in sprocket cavity to prevent turning of sprocket shaft and remove nut (33280),
washer (Y1-966) and gear.
3. Remove retaining ring (Y147-18) from "motor end" of housing.
4. Sprocket shaft and bearing (33236) may now be removed through "motor end" of housing.
5. Remove chain guide (35861) and pocketwheel (37571) on link chain models. On roller chain models, to remove
chain guide (34991), remove cap screws (Y154-54) and washers (Y14-10) from housing.
6. Remove retaining ring (Y147-18) and bearing (33236) from "brake end" of housing.
Assembly
Link-chain Models
1. Insert pocketwheel (37571) into chain guide (35861) and place in housing.
Note: Pocketwheel must be installed with 1.250 diameter counterbore facing away from "brake end" of housing.
Secure plate (33318) to housing with sems fasteners (33330).
2. Assemble bearing (33236) and retaining ring (Y147-18) into "brake end" of housing.
3. Assemble retaining ring (Y145-28) into groove in shaft (34985) and assemble bearing (33236) on end of shaft
with retaining ring.
4. Assemble shaft, with bearing and retaining ring through opening at "motor end" of housing. Insert shaft
through pocketwheel and through bearing in "brake end" of housing. Assemble retaining ring (Y147-18) into
housing.
5. Assemble gear (33374) to shaft and secure with washer (Y1-966) and nut (33280).
6. Assemble brake block (34029) to control rod (34021) and secure with roll pin (Y178-60).
7. Assemble hangers (37585) and control arm (37719) to housing.
Note: Assemble control arm in housing with arms for mounting control chains pointing towards air inlet and
insert control rod through housing, hangers and control arm. Secure control rod and arm with roll pin
(Y178-55).
8. On 1 ton models, assemble anchor bracket (41624) to hangers (37585) and secure with washers (37587) and
anchor bolts (37586).
9. For installation of load chain, refer to
Roller Chain Models
1. Insert chain guide (34991) into housing and secure with washers (Y14-10) and cap screws (Y154-54).
2. Assemble bearings (33236) and retaining ring (Y147-18) into "brake end" of housing.
3. Assemble bearing (33236) on sprocket (33375) and assemble into housing through "motor end" with threaded
end of sprocket through bearing in "brake end" of housing.
4. Assemble gear (33374) to shaft and secure with washer (Y1-966) and nut (33280).
5. Secure chain stripper (33319) to housing with sems fasteners (33330).
6. Assemble brake block (34029) to control rod (34021) and secure with roll pin (Y178-60).
7. Assemble hangers (37585) and control arm (37719) to housing.
Note: Assemble control arm in housing with arms for mounting control chains pointed towards air inlet) and insert
control rod through housing, hangers and control arm. Secure control rod and arm with roll pin (Y178-55).
8. On 1 ton models, assemble anchor bracket (37579) to hangers (37585) and secure with washers (37587) and
anchor bolts (37586).
9. For installation of load chain, refer to
22
"Removal and Installation of Load Chain," p.
Figure 7, p.
13.
13.
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