EP Equipment CQD16, Service Manual

Page: 125 / 251

REV. 07/2016
ELECTRICAL SYSYTEM
8
111
8.4 Height Display (RVF/NRVF)
RVF/NRVF premium grade truck model can
select the optional height display function. This
function is primarily achieved through height
encoder (5), steel wire rope (7), reset switch (9)
and several other core components.
8.4.1 Removal and Installation
Height encoder is installed on the horizontal
beam of outer mast.
-
-
-
Disconnect the height encoder (5) connector;
Unscrew the four bolts (1) on the encoder
mounting plate (2) with a wrench and remove
the encoder seat (3);
Unscrew the screw (4) with a wrench and
remove the height encoder (5) and encoder
roller (6) from the encoder seat (5).
Height Encoder Removal
Reset switch is installed on the horizontal beam
of outer mast.
- Raise the middle mast and inner mast with
lifting equipment;
Reset Switch Removal
-
-
-
Disconnect the reset switch (9) connector;
Unscrew the four bolts (8) and remove the
switch mounting plate (10);
Unscrew the four screws (11) and remove the
reset switch (9).
Make sure the lifting equipment is solid and
secure, and the load capacity should be greater
than the total weight of the vehicle, so that
to prevent the maintenance personnel from
the risk of getting hurt during removal and
installation operations under the mast.
CAUTION
Installation
- Install according to the reverse order of rem-
oval;
8.4.2 Faults and Causes
1
Fault
Under the lifting status of mast, the
instrument does not display height
or displays abnormally
Cause
a. Height encoder failure;
b. Encoder circuit failure.
2
Fault
The mast is not lifted, but the
instrument reading of height is
not 0, and displays fault code of
“ENCODER RESET”
Cause Reset switch or its circuit failure.
Checking
8.4.3 Checking and Testing
-
-
Check if the appearance of height encoder,
reset switch and their wiring harness are in
good condition, and if the connectors are
connected securely;
Check if the height encoder, encoder roller
and wire rope are installed properly.