Alamo Schwarze SUPERVA C SUPER UPDRAFT, Руководство по эксплуатации продукта

Страница: 58 / 79

Section 4 - Service
revised 04/19 SCHWARZE SUPER UPDRAFT
59
8. Start the sweeper engine. Squealing or abnormal vibrations indicate low belt drive tension. Adjust as
needed.
9. Re-bolt the belt guard back into position.
9.2 Drive Belt Replacement
With normal use, the drive belt will become worn. It is advisable to replace the drive belt when it shows signs of
wear, rather than waiting for it to break. This practice will help to ensure optimum sweeper performance and
avoid downtime.
To replace the drive belt, reposition the sweeper engine. This can be accomplished by loosening the mounting
bolts and jackscrews attached to the engine skid, as described in `DRIVE BELT.' Be sure to read the `DRIVE
BELT' section before following the removal/replacement outline in this section.
Before installing a new drive belt, always inspect the belt pulleys for nicks, burrs or excessive wear. Replace
the pulleys if such irregularities are found.
Removal:
1. Remove the sweeper engine's keys and/or disconnect the battery cable to prevent the sweeper engine
from being started accidentally.
2. Follow the procedures outlined in steps 1-4 in `DRIVE BELT.'
3. Turn the jackscrew nuts so the engine skid is pushed toward the fan shaft.
4. As the engine skid moves toward the fan shaft, the drive belt will become loose enough to be slipped from
its pulleys.
Replacement:
1. Inspect the pulley grooves for burrs and other irregularities that may cause abnormal belt wear. Correct as
required.
2. Slip the replacement belt into position.
3. Tighten the jackscrew nuts so the engine skid is pulled away from the fan shaft.
4. Continue to tighten until the belt has 1/2" deflection between the pulleys using 30 lbs. of pressure (roughly
the equivalent of pressing down on the belt with your thumb.)
5. Check the alignment of the pulleys, using a string or straight edge, from the face of one pulley to the face of
the other. This will allow you to determine whether the pulleys are in line with each other.
NOTE: For slight misalignment, the pulleys may be repositioned on their respective shafts. If greater
adjustment is needed than pulley repositioning can achieve, the entire engine / engine skid assembly must be
moved to obtained alignment. The slotted tie-down holes of the engine skid allow a limited amount of forward-
back movement.
6. Once proper pulley alignment is achieved, run the jam nuts back against their respective jackscrew nuts.
7. Tighten the four tie-down bolts at the corners of the engine skid.
NOTE: Once the four tie-down bolts have been tightened, release the tension on the jackscrews.
8. Start the sweeper engine. Squealing or abnormal vibrations indicate low belt drive tension. Adjust as
needed.
9. Re-bolt the belt guard back into position.
Replacement