3M MATIC A80F Instructions And Parts List page 48

13-MAINTENANCE AND REPAIRS (continued)
Figure 13-4 – Drive Belt Replacement/Tension Adjustment
7. Important – Before installing new drive belt, check belt inside surface for drive direction arrows and install
belt accordingly. If no arrows are shown, belt may be installed either way.
Install new belt around drive rollers and insert splicing pin. Pin must not extend beyond edge of belt.
8. Set drive belt tension – turn adjustment screws equally on both upper and lower tension assemblies. Turn
screws clockwise to reduce belt tension, counterclockwise to increase tension.
Use force gauge to pull belt outward one inch [25mm] at midspan, as shown in Figure 13-5, with a moderate
pulling force of 7 lbs. [3.5 kg]. Tighten lock nuts on both tension assemblies to secure tension setting.
9. Assembly is reverse of disassembly.
Box Drive Belt
Discharge End
Figure 13-5 – Drive Belt Tension Adjustment (Top View)
a80f-NA
3.5kg (7 lbs) Pull Force
with 25mm (1 inch) at Mid Span
36
Infeed End
2010 March