allen MSP475, Safety & Operation Manual

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Lift Lever Adjustment Procedure
• Damage to and/or replacement of a trowel arm can change the adjustment of the lift lever. This can unbalance the
trowel arms and cause the riding trowel to wobble during operation. To operate smoothly the lift lever on all trowel
arms must be adjusted the same to ensure that the riding trowel is balanced correctly.
• Adjusting the trowel arms is accomplished by using the optional trowel arm alignment jig AEC PN 016863. The
service manual that is included with the alignment jig describes in detail the steps to preform this procedure and to
check the flatness and straightness of the trowel arms.
Make sure that there is no pitch in the blades
before attempting to remove a trowel arm.
• The steps below descried the general procedure to remove the trowel arms to be aligned.
1. Block up pressure plate [A] using a wooden block.
2. Remove stabilizer ring from spider assembly (only on available models).
3. Remove blades from trowel arms.
4. Loosen hex head cap screw [B] and remove it and the external star washer from the spider boss.
5. Remove trowel arms from spider boss with lift levers in place.
6. Clean flats on trowel arm before placing it in the trowel arm jig (PN 016863).
7. Preform the alignment procedures as outlined in the alignment jig service manual (PN 047427).
8. Re-attach trowel arm to spider boss and blades to trowel arms.
9. Tighten down hex head cap screw to secure trowel arm in place.
10. Reattach stabilizer ring (only on available models).
PICTURES FOR REFERENCE ONLY
BLADE
TROWEL ARM
A
PRESSURE PLATE LOCATION
B
SPIDER BOSS
FASTENER HARDWARE REMOVAL
Lift Lever Adjustment
SECTION 3
SERVICE
069583 Page 43