Wallenstein BXMT Series, Руководство оператора

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01092
Fig. 33 – Drive Belt Tension Adjuster Bolt
4. Install the new belt and slide the engine forward.
Tensioning
For accurate measurement use a drive belt tension gauge. If one
is not available, the following method can be used.
5. Turn the belt tensioning bolt clockwise pulling the engine to
tighten the belt.
6. Use your hand to check belt deflection by pressing on
the top, center of the belt. Correct belt tension is when it
does not deflect more than 1/2–5/8" (12–16 mm). Adjust
accordingly.
01094
Fig. 34 – Rotor drive belt tension
7. Turn adjuster accordingly. Be aware of belt alignment when
adjusting belt tension. See
Alignment to follow.
8. When belt tension is correct, recheck belt alignment.
Tighten all four engine mount bolts. Torque to
33 lbf•ft
(45 N•m) .
9. Reinstall belt shield.
10. Recheck belt tension after 10 hours of operation.
7.6.1 Alignment
Observe drive belt alignment every 8 hours of operation.
For accurate measurement use a laser alignment tool. If one is
not available, the following method can be used.
The maximum offset (misalignment) is 1/32" (1 mm).
1. Remove the belt guard.
2. Place a straight edge along the inner face of the engine
clutch and back side of the rotor sheave. Check the space
between the drive belt and the straight edge. The gap
should be even along the length of the straight edge.
01093
1 2
3
4
Fig. 35 –
Drive Belt alignment
1. Straight Edge
2. Drive Belt 3. Engine Clutch
4. Rotor Sheave
3. If the gap is not even along the length of the belt, determine
whether the engine is square to the chipper frame. It may
also be that the rotor sheave has moved in or out on the
shaft. Belt alignment can be corrected two different ways:
-
Turning the engine on the mount
-
Adjusting the rotor sheave in or out on the shaft.
BXMT3209
Trailer Chipper-Shredder
Service and Maintenance
35