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SERVICE MANUAL
ON-BOARD ADJUSTMENT OF THE BRUSH DECK LIFTING/LOWERING ACTUATOR
LIMIT SWITCH POSITIONS
1.
Drain the recycling water, if any, from the related tank (70) by using the pipe (36).
2.
Drain the solution, if any, from the related tank (71) by using the pipe (37).
3.
Position the machine on a level ground.
4.
Make sure that the brushes (I) are installed on the machine.
NOTE
To perform this adjustment, new brushes (not worn ones) should be used. See the note at step 12
below.
5.
Turn the ignition key (10) to "0" position.
6.
Unscrew the handwheel (66).
7.
Hold the handlebar (2) and carefully lift the tank assembly (78) to be able to work on the deck (79).
Lifted deck position inspection
8.
Turn the ignition key (10) to "I" position and lift the brush deck (22) by using the switch (2). Turn the ignition key (10)
to "0" position.
9.
When the brush deck (A) is in the lifted position, check that the deck contacts the rubber pad (B) and the deck upper
side (C) is horizontally positioned. If necessary, restore this condition by proceeding as follows.
10. Unscrew the screws (D) and remove the cover (E) with the gasket (F).
Loosen the cam dowel (G) and rotate the cam by varying the microswitch (H) actuation point as necessary; tighten
the cam dowel.
NOTE
When advancing or retarding the cams, remember that they rotate clockwise during the actuator
descent.
Turn the ignition key (10) to "I" position and lower and lift the brush deck (A) by using the switch (2), then turn the
ignition key (10) to "0" position and repeat the inspection described at step 8.
Lowered deck position inspection
11. Turn the ignition key (10) to "I" position and lower the brush deck (22) by using the switch (2). Turn the ignition key
(10) to "0" position.
12. When the brush deck is in the lowered position (A), check that the screw (L) is approximately in position (M) on the
slot (N). If necessary, restore this condition by proceeding as follows.
NOTE
Position (M) refers to the deck positioning when new brushes are installed. The slot (N) upper space
reduces by the same amount as the brush wear.
13. Unscrew the screws (D) and remove the cover (E) with the gasket (F), if you haven't done it yet.
Loosen the cam dowel (O) and rotate the cam by varying the microswitch (P) actuation point as necessary; tighten
the cam dowel.
Turn the ignition key (10) to "I" position and lift and lower the brush deck (A) by using the switch (2), then turn the
ignition key (10) to "0" position and repeat the inspection described at step 12.
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909 5484 000(1)2004-03
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Table of Contents
Troubleshooting
