ENGLISH
SERVICE MANUAL
38
909 6424 000(3)2007-12
BR 601 / BR 651 / BR 751 / BR 751 C
RECOVERY WATER SYSTEM
VACUUM SYSTEM MOTOR ELECTRICAL INPUT CHECK (before S/N ..........)
WARNING!
This procedure must be performed by qualifi ed personnel only.
Drive the machine to the appointed disposal area, and empty the recovery water tank (58) with the hose (22).
Empty the solution/washing water tank (59) with the tap (36).
Drive the machine on a level fl oor.
Turn the ignition key (12) to "0".
Carefully lift the tank assembly (60).
Apply the amperometric pliers (A) on one cable (B) of the vacuum system motor (C).
Turn the ignition key (12) to "I".
Turn on the vacuum system motor by pressing the switch (6) and check that the motor electrical input is 18 - 22 A at 24 V.
Turn off the vacuum system motor by pressing the switch (6). Turn the ignition key (12) to "0" and remove the amperometric
pliers (A). If the electrical input exceeds the specifi cations, check the motor carbon brushes (see the procedure in the relevant
paragraph). If necessary, disassemble the vacuum system motor (see the procedure in the relevant paragraph), and 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 (see the procedure in the relevant paragraph).
Carefully lower the tank assembly (60).
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