Maintenance (continued)

WARNING

To reduce the risk associated with mechanical and electrical hazards:

Turn electrical and air supply off and disconnect before performing any adjustments, maintenance or servicing the machine or taping heads

To reduce the risk associated with impact hazards:

Always use appropriate supporting means when working under the upper drive assembly

13.8Box Drive Belt Replacement

Note 3M recommends the replacement of drive belts in pairs, especially if belts are unevenly worn.

Lower Drive Belts

Figure 13-4

1.Remove and retain center plates (A) and four (4) screws.

2.Remove and retain side cover (B) and fasteners.

3.Loosen, but do not remove lock nut (C).

4.Loosen tension screw (D) until all belt tension is removed.

5.Pull belt splicing pin (E) out and remove belt.

6.Place new belt over pulleys with laced splice at top. Insert splicing pin. Note – Pin must not extend beyond edge of belt.

7.Adjust belt tension as explained in "Adjustments – Box Drive Belt Tension".

8.Replace side cover and center plates and secure with original fasteners.

Upper Drive Belts

Figure 13-5

1.Remove and retain center plate (A) and four screws and plain washers.

2.Loosen, but do not remove lock nut (B).

3.Loosen tension screw (C) until all tension is removed from belt.

4.Remove four (4) screws on side of belt guard

(D) and slide belt guard out to expose belt.

5.Pull belt splicing pin (E) out and remove belt.

6.Place new belt over pulleys with laced splice at top. Insert splicing pin.

Note – Pin must not extend beyond edge of belt.

7.Adjust belt tension as explained in "Adjustments – Box Drive Belt Tension".

8.Replace front cover and belt guard(s) and secure with original fasteners.

700r-NA

43

EC A

D

B

Figure 13-4 – Lower Drive Belt Replacement

A

B

C

E

D

Figure 13-5 – Upper Drive Belt Replacement

2011 July

Page 53
Image 53
3M 40800 operating instructions Box Drive Belt Replacement Lower Drive Belts, Upper Drive Belts

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