EP Equipment EPT20-15ET, Service Manual

Page: 93 / 128

REV. 09/2016
ELECTRICAL SYSYTEM
8
82
8.8 Speed Mode Switch (Optional)
8.8.1 Removal and Installation
-
-
-
Unscrew the two screws (1) with a wrench,
and remove the mounting plate (2) from the
bearing bridge;
Remove the speed mode switch (3) from the
mounting plate (2);
Disconnect the connection between speed
mode switch and drive wiring harness.
Removal
Installation
-
Install according to the reverse order of rem-
oval.
Checking
8.8.4 Checking and Testing
8.8.3 Faults and Causes
1
Fault
When left or right steering angle ≥
45°, but travel speed of forklift is
not reduced
Cause
a. Speed mode switch failure;
b. Speed mode switch with broken
circuit.
2
Fault
When speed mode switch is activ-
ated, the speed is not reduced
Cause
a. Speed mode switch failure;
b. Speed mode switch shorted
(short circuit).
8.8.2 Connection Mode
Speed mode switch has 3 terminals.
The switch can be switched between open and
close by toggling the roller lever to achieve the
control of connection and disconnection of the
circuit.
Normally-opened (NO):
Terminal (2) and Terminal (3) for connection of
wiring harness connector to switch base
-
-
Check the switch for damage and check the
roller for deformation;
Check if the handwheel is working smoothly
and if there is foreign body blockage.
-
Check if the half-speed rail is in the initial
position.(see Figure10512)