Maintenance (Continued)

WARNING – Turn off electrical power and air supply and disconnect power cord from electrical supply before beginning maintenance. If power cord is not disconnected, severe injury to

personnel could result.

Box Drive Belt Replacement

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

LOWER DRIVE BELTS

Figure 4-2

1.Remove and retain center plates (A) and four 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", Page 25.

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

UPPER DRIVE BELTS

Figure 4-3

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 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", page 25.

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

Figure 4-2 – Lower Drive Belt Replacement

Figure 4-3 – Upper Drive Belt Replacement

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3M 39600 manual Personnel could result Box Drive Belt Replacement, Lower Drive Belt Replacement
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39600 specifications

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