Disassembly/Reassembly 3M-Matic 800rf Case Sealer
4-4 3M 1998 December
4-5. Motor Drive Belts, Upper and Lower
Turn off the main air supply and electrical
power before removing any components.
ü Note
A gear puller is needed to complete this procedure.
Make sure a gear puller is available before begin-
ning this procedure.
1. Remove the side drive belt assembly using
Procedure 4-3 in this section.
2. Remove the side drive belt using Procedure 4-4 in
this section.
3. Remove the self-locking nut and the washer from
the top of the wrap pulley assembly [43].
4. Remove the bolt and washer from the bottom of
the rod. Slide the rod out of the threaded sleeve.
5. Remove the M22 nut from the bottom of the
threaded sleeve.
6. Loosen but do not remove the self-locking nut on
the jockey pulley assembly [35].
7. Remove the hex-head screw and the washer from
the bottom of the wrap pulley assembly [43].
8. Remove the nut and washer from the bottom of
the idler roller assembly [51].
9. Remove the two screws holding the chain cover
[76] in place and remove the chain cover.
10. Remove the chain [75] by disconnecting the
removable link.
11. Remove the two standoffs on which the chain
cover [76] is mounted.
12. Remove the screw and washer holding the
sprocket [33] on the bottom of the drive pulley
assembly [27].
13. Remove the 3/8-inch keyed sprocket [33], using
a gear puller, and being careful not to lose the
key.
14. Remove the three (3) hex-head bolts and washers
holding the drive pulley assembly [27].
15. Remove the drive pulley assembly [27].
16. Remove the six (6) hex head bolts which hold the
two halves of the side drive belt assembly to-
gether from the bottom of the assembly.
17. Lift the lower half of the side drive belt assem-
bly and move it aside from the upper half,
pivoting on the belt drive pulley assembly [15]
shaft.
18. Remove the wrap pulley assembly [43].
19. Remove the timing belt(s) to be replaced.
20. To reassemble and reinstall the side drive belt
assembly, perform steps 1 through 19 of this
procedure in reverse order.
21. When the side drive belt assembly has been
reassembled and reinstalled, perform the follow-
ing adjustment procedures described in Section 3.
•Motor Drive Belts, Upper and Lower
•Side Belt Tension
Warning!