Service Manual
8
V
ECTOR
C
ONTROLLER
-S
ERVICE
M
ANUAL
Emergency stop buttons
When an E-stop is pushed, all hydraulic functions of
the machine will stop. Do not use the emergency stop
button as an on/off switch. It is for emergencies only.
In normal operating conditions, always stop the
machine functions with the controls provided for that
purpose.
Override of the E-stop manifold
Bypass mode
• Use override only for emergency fold-up
and cleaning.
• Emergency stop buttons do not function
when the
bypass
mode is used.
If there is a malfunction in the E-stop circuit and the
dump valves (in the E-stop manifold) open, oil will be
routed from the hydraulic pump directly back to the
tank. The dump valves also open when any emergency
stop button is pushed.
If the dump valves open and the machine cannot be
repaired immediately, the power supply to the dump
valves can be reactivated by using the bypass switch
(Figure 11).
By activating the bypass key switch to the bypass
position, you send power to the solenoid of the
normally open dump valve. If the solenoid is functional
the dump valve will close and you should be able to
fold up the boom and outriggers with the manual
controls.
If the problem is actually a bad solenoid, the pilot
signal to the dump valve can be overridden by having
one person push and hold the override handle on the E-
stop manifold while the other person activates the
manual controls for the nonworking system.
E_Stopbutton.eps
Figure 10
E-stop button
WARNING
000360.eps
Emergency stop switches are disabled
when manual override is activated.
Use the by-pass key switch only for
folding the boom in an emergency and
for clean out
BY-PASS
NORM. BY-PASS
by-pass2.eps
HOME HELP
CLEAR ENTER
OFF
QUIT
+
-
S
TART
OK
1
0
2
3
PTO
Menu: [ENTER]=ON
1500 rpm
62˚C
x1000
Bypass
Key
bypasskeyswitch.eps
Figure 11
Bypass key switch location
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