Minuteman ERide 21, Руководство по обслуживанию

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7.3 DISK BRUSH MOTOR TEST
WARNING!
This procedure must be performed by qualified
personnel. p
1. Remove the disc brush (1, Figure 7-6 ), operating as indicated in the User and
Maintenance Manual.
2. Turn the ignition key to "0".
3. Place a wooden block (2, Figure 7-6 ) 6-7 cm high under the rear wheels of the
machine. Also apply wedges (3, Figure 7-6 ) on both of the rear wheels, to
securely lock the machine securely lock the machine.
4. Apply two suitable wooden shims (4, Figure 7-6 ) under the
front chassis of the machine, high enough to also lift the front wheel by 6-7 cm.
WARNING! Keep the wooden shims (4, Figure 7-6) at an appropriate
distance from the disc brush hub. Make sure that all the wooden
shims are completely stable to be able to mount the machine and operate shims are completely stable to be able to mount the machine and operate
the controls.
5. Open the cover (5, Figure 7-6 ) and remove the panel (6) by lifting it up. Lower the
cover back down (5).
6. Apply the current clamp (7, Figure 7-6 ) to one of the power leads (8) for the disc
brush motor.
7. Cautiously sit on the seat of the machine.
WARNING! Do not touch any electrical components that are not
protected by the panel (6, Figure 7-6), as removed!
8. Turn the ignition key to "I" and wait for the word "READY" on the display.
9. Operating on the machine's controls as indicated in the User and Maintenance p g
Manual, lower and rotate the disc brush, and then check on current clamp that
the absorption of the motor is approximately 5 amps at 24 volts.
10. Stop the rotation of the brush.
11. Turn the ignition key to the "0".
12. Get off the machine and remove the current clamp.
13
If the absorption is greater perform the steps below in sequence to locate and 13. If the absorption is greater, perform the steps below in sequence to locate and
eliminate the cause of the anomalous absorption:
• check that there is no debris or dirt (cords, cables, etc.) on the brush fastening
hub.
• check the carbons of the electric motor (see procedure in the specific paragraph)
• if necessary, disassemble the motor (See procedure in the specific paragraph)
then check the state of its parts
then check the state of its parts.
In the case where the operations described above do not lead to a proper
absorption of the motor, it will need replacing (see procedure in the specific
paragraph).
14 . Reverse steps 1 to 5.