Advance acoustic Terra 5200 B, Service Manual

Page: 73 / 112

DRIVE SYSTEM
SERVICE MANUAL ENGLISH
Terra™ 5200 1463546000(1)2008-07 71
DRIVE SYSTEM
DRIVE SYSTEM MOTOR ELECTRICAL INPUT CHECK
WARNING!
This procedure must be performed by qualified personnel only.
Drive the machine on a level floor. 1.
Do not engage the parking brake with the pedal and the lever (25 and 18), but make sure that the machine cannot move 2.
independently.
Check that brooms and vacuum system are tuned off. 3.
Turn the ignition switch (17) to “0”. 4.
With a proper and safe hoisting system, hook the machine on the rear lifting anchors (94), then lift it until the rear wheels (41) 5.
are at 0.8-1.6 in (4-5 cm) from the floor.
Open the hood (49) and fasten it with the support rod (63). 6.
WARNING!
Pay attention to the chain (A) and shaft rotation while performing the following steps.
Apply amperometric pliers (B) on a cable (C) of the drive system motor (D). 7.
Turn the ignition switch (17) to “I”. 8.
Press the forward gear pedal (19) until the end of the stroke, and check that the electrical input of the drive system motor (D) is 9.
15 - 20 A at 24 V. Release the pedal (19). Turn the ignition switch (17) to “0” and remove the amperometric pliers (B).
If the electrical input is higher, perform the motor carbon brush check (see the procedure on the following pages). If necessary,
disassemble the vacuum system motor (see the procedure on the following page), clean it and check its moving parts.
If the above-mentioned procedures do not lead to a proper electrical input, the motor must be replaced (see the procedure in
the relevant paragraph).
Perform steps 1 to 6 in the reverse order. 10.