VACUUM SYSTEM MOTOR ELECTRICAL INPUT CHECK [MICROMATIC M17B - MICROMATIC M17E]
WARNING!
This procedure must be performed by qualied personnel only.
Drive the machine on a level ground.
Check that the switches (5 and 6) are turned to “0”.
If there is recovery water in the tank (43), drain it through the hose (22).
Disconnect the vacuum hose (29) from the squeegee (17).
Open the cover (12).
Grasp the recovery water tank (A) in the area (B) and lift it, as shown in the gure, then disconnect the vacuum hose (C) from
the tank and remove the tank (A) together with the hoses (D) and (E).
(MICROMATIC M17E) Loosen the clamp (I) and disconnect the hoses (J), then remove the waterproof cover (K).
WARNING!
Do not touch uncovered electrical components while performing the following steps.
Place an ammeter (F) on one of the cables (G) of the vacuum system motor (H).
Activate the vacuum system by turning the switch (6) to “I”, then check that the vacuum system motor electrical input is within
the following limits:
MICROMATIC M17B:
- 14 to 17 A
MICROMATIC M17E:
- 4 to 4.5 A
Turn the switch (6) to “0”.
If the electrical input is higher, perform the following procedures to detect and eliminate the cause of the abnormal input:
Check the motor carbon brushes;
If necessary, disassemble the motor and clean it carefully, then check the condition of its moving parts.
If the above-mentioned procedures do not lead to a correct electrical input, the motor must be replaced.
Carry out steps from 4 to 8 in the reverse order.
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