Broan 1051-J User Manual

7

1. Remove sprocket and drive pin.
2. Pull out trunnion bearing.
Grease trunnion bearing inside and out with wheel bearing grease

prior to reinstalling.

1. Remove motor, gearbox, spocket, and screw guard.
2. Use 13/16" wrench to remove bolts securing links to motor

trunnion.

When reinstalling, bolts should be torqued to 45 foot pounds.

1. Line up one of the 3/8" holes in the sprocket with the 3/8"

hole in bottom center of gearbox. Insert 3/8" steel pin or bolt

through sprocket hole into front and rear gearbox holes.*

2. Loosen and remove 15/16" nut on the drive screw. When

reinstalling torque to 65 foot pounds and apply Locktite

®

 to

threads.

*If the sprocket is

too damaged to be

able to use on of the

holes to secure it,

chip away the re-

maining sprocket, re-

move the drive pin

and then insert a

screwdriver through

the hole to provide a

means of keeping the

drive screw from

turning.

1. Turn sprocket until two holes in sprocket line up with socket

head cap screws.

2. Remove socket head cap screws and tip gearbox/motor as-

sembly to remove chain. NOTE: The screws thread into 2

nuts which rest in slots in the motor trunnion. Be careful not

to lose the 2 nuts when the screws are removed.

When reinstalling socket head cap screws, be sure Locktite

®

 is

applied to the nuts.
Chain Derailment: Loose chains. Sometimes a chain will derail

because trash which flew up above the ram during compacting

fouled the chain. Newspaper or a paper bag should be placed on

top of glass bottles before compacting to prevent this.
If continual derailment of the chain is a problem, inspect both

sprockets for worn or missing

teeth. Inspect gearbox mount-

ing and mounting plate. If the

mounting screws are loose,

gearbox movement may be the

cause. If the gearbox mounting

plate is bent where it meets the

motor trunnion, either straight-

en or replace the gearbox.
Some chain looseness is nor-

mal and may increase as the

compactor is used. Seldom

does the chain “stretch” to the

point where it is too loose.

1. Lower ram manually until there is approximately 11" to 12"

between the ram and the bottom assembly.

2. Remove the four 3/8" nuts securing motor to gearbox, slide

motor out and rest it on the front trunnion assembly.

3. Turn sprocket until two holes in sprocket line up with the two

socket head cap screws that hold the gearbox to the motor

trunnion.

4. Remove the two socket head cap screws with a 5/32" hex key.

NOTE: The screws thread into 2 nuts which rest in slots in the

motor trunnion. Be careful not to lose the 2 nuts when the

screws are removed.

5. Tilt gearbox forward and remove chain. Lift gearbox out.
When installing gearbox, Locktite

®

 should be applied to the socket

head cap screw nuts.

1. Unplug compactor from wall outlet.
2. Remove drawer assembly from compactor.
3. Remove back of compactor and lower mechanism manually

by turning 15/16" nut on sprocket clockwise.

4. Line up one of the holes in the black sprocket with the hole in

the gearbox. Insert a 3/8" bolt or pin to keep sprocket from

turning and remove the 15/16" nut.

5. Slide off sprocket and washer.
6. Drive out the drive pin, slide off thin washer and pull out

trunnion bearing.

7. Grease trunnion bearing everywhere, inside and out, with

regular wheel bearing grease.

8. Reassemble unit in reverse procedure. When reinstalling 15/

16" nut, be sure to apply a drop of Locktite

®

 or equivalent to

the threads of the 15/16" nut.

Apply grease to length of drive screw and a dab to the scissor

links at the pivot points.

5/32”

HEX KEY

INSERT

3/8” DIA. PIN