EP Equipment EPT20-15ET, Service Manual

Page: 48 / 128

37
REV. 09/2016
DRIVE SYSTEM
5
5.2.1 Removal and Installation
Removal
The brake is installed on the drive motor. See
Figure 30204
-
-
Switch off the truck power connections and
pull out the brake connectors;
Remove the drive cover;(see Section 4.2)
-
-
-
Remove the three mounting screws (1) with
wrench. Remove the electromagnetic coil (2)
and dust cover (3);
Remove the brake pads (4) and friction plates
(5) by order;
Remove the circlip (6) on the shaft with circlip
pliers and remove the brake gear (7).
Installation
-
Install according to the reverse order of rem-
oval.
When installing the brake gear (7), make sure
the flat key is installed on the shaft of drive
motor (8).
CAUTION
Adjustment
The electromagnetic brake used in this series of
truck is an air gap adjustment-free brake. After
the normal installation is completed, the air gap
between electromagnetic coils and pressure
plate should be standard gap distance.
As shown in the following table:
Air gap Standard value Maximum value
s 0.2 mm
0.4 mm
When the air gap s exceeds 0.4mm, replace the
brake pads (2, Figure 30203)
5.2.2 Faults and Causes
1
Fault
After the coil is energized, the
pressure plate does not absorb
Cause
a. Mechanical part failure;
b. Foreign body blocking;
c. Coil failure;
d. Coil supply voltage less than
24V
CAUTION