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DRIVE SYSTEM
DRIVE SYSTEM
DRIVE MOTOR ELECTRICAL INPUT CHECK
WARNING!
This procedure must be performed by qualified personnel only.
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.
Remove the brushes (84) by using the switch (6).
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 battery (75).
8.
Sling the machine by means of two ropes (A) of the same length (as shown in the figure) to hoist the machine front
part.
Attach the ropes (A) to the brackets (B) so that they cannot come out.
9.
Slightly tension the sling (A) by using a proper hoisting system, then lift the machine front part, until the drive wheels
(C) are a few centimeters from the ground, so that they do not touch the ground when rotating.
Safely hold the hoisting system in this position.
WARNING!
Pay attention to the drive wheel (C) rotation while performing the following steps.
10. Apply the ammetric pliers (D) to the battery (red) positive cable.
11. Turn the ignition key (10) to "I" position.
12. Set the forward speed adjuster (7) to the maximum speed.
13. Push the forward/reverse and brush/pad/cylindrical brush rotation paddle (14) and check that the electrical input at
24 V is between 2 and 3A. Release the forward/reverse and brush/pad/cylindrical brush rotation paddle (14). Turn
the ignition key (10) to "0" position and remove the ammetric pliers (D).
If the electrical input exceeds the specifications, perform the following operations to identify and eliminate the cause
of the faulty input:
–
check for debris or dirt preventing the component rotation;
–
if necessary, disassemble the motor differential (see the procedure on the following pages), then check the
hubs for proper alignment and the bearings for smoothness;
–
if necessary, disassemble the motor, then inspect the condition of all its parts.
If the above-mentioned procedures do not lead to a correct electrical input, it is necessary to replace the motor (see
the procedure on the following pages).
14. Carry out steps from 4 to 9 in the reverse order.
909 5484 000(1)2004-03
SERVICE MANUAL
39
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Troubleshooting
