Document 57.4400.7200 - 1
st
Edition 03/2005
INDEX
5
7
TELELIFT 3713 Elite - 4017 - 4514
TROUBLESHOOTING
Trouble
Cause
Solution
No mechanical gear put
The solenoid valves of the forward and
reverse speeds are damaged
Relays
K7
and
K8
damaged
Relays
K9
and
K10
damaged
Relays board damaged
Relays board damaged
Fuse
F14
blown.
Speed change button
S14
damaged
Speed change sensor damaged
Speed change control unit
S24
damaged
Speed change control unit
S24
damaged
No shifting between first and second
mechanical gear
Check that micro-switch
B54
lets the
signal enter through pin
8
of connector
X16
of the fuses and relays board and
power the coils of relays
K9
and
K10
which supplies relays
K7
and
K8
with
power (forward and reverse speed).
Check you have 12V on solenoid
Y01-
A
, when the forward gear is put, and,
12V on solenoid
Y02-B
when the
reverse gear is put. If necessary, change
the coils of the solenoid valves.
Check the relays and replace if
necessary.
Check the relays and replace if
necessary.
Check you have 12V on connector
X16
on pins
4
and
8
; if necessary replace
the board.
Check you have 12V on connector
X16
on pins
9
and
11
; if necessary replace
the board.
Check the fuse and replace if
necessary.
Check you have 12V on contact
5
and,
12V on contact
1
with the button
pressed down; change the button if
necessary.
Check the sensor and replace if
necessary.
Check the inputs of the control unit: you
must have 12V on connector
X17
to
pin
17
when the button is pressed, and
0V on connector
X16
to pin
13
with the
machine stopped. If necessary, change
the board.
Check the control unit's output to
86
of relay
K5
and, if necessary, replace.
Summary of Contents for TELELIFT 3713 Elite
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