7676
returns it to the top port in sump. The pump and
cooler fan are activated whenever Operate Mode
is selected.
OMSI Gearbox Warning Lights and 40K
Clutch Safety Cutout Relay
Four sensors monitor uid level and tempera-
ture in the OMSI gearbox sections. There is a
temperature sensor and uid level sensor in the
hydrostatic drive/dierential output section (rear
section) and a temperature sensor and uid level
sensor in the 40K Clutch section (front section).
A red LED light in the Split Drive Oil Panel on the
console switch panel will illuminate and the relay
that disengages the 40K clutch will be activated
if any sensor detects low uid or high uid tem-
perature. Another sensor in the 40K clutch lubri-
cation pump circuit will also activate the relay to
disengage the 40K clutch and illuminate the red
Low Oil LED light in the console switch panel if it
senses low uid pressure.
If the condition that caused a sensor to disengage
the 40K clutch was temporary, the cutout circuit
can be reset by activating the Water & Gearbox
Reset switch in the joystick console and opera-
tions can resume. Otherwise the clutch will cutout
again after ten seconds and the low oil, high uid
temperature or low uid pressure condition must
be corrected before operations can resume.
The following conditions will activate the
warning lights and disengage the 40K clutch:
• The temperature of the 40K clutch uid ex-
ceeds safe operating temperature. The Front
Temp warning light is lit.
• The uid level in the 40K clutch is low. The
Front Level warning light is lit.
• The temperature of the uid in the hydrostatic
drive/dierential output section exceeds safe
operating temperature. The Rear Temp warn-
ing light is lit.
• The uid level in the hydrostatic drive/dier-
ential output section is low. Rear Level warning
light is lit.
• Low uid pressure in the 40K uid lubrication
pump circuit. Low Oil warning light is lit.
Split Drive Oil Warning Light Panel
Water & Gearbox Reset Switch
Temp/Level/Charge Water Cutout Indicator Lights
NOTICE:
A SENSOR IN THE LOW PRESSURE WATER SUPPLY TO
THE ULTRA-HIGH PRESSURE PUMP WILL ALSO ACTIVATE
THE RELAY THAT DISENGAGES THE 40K CLUTCH AND
ILLUMINATE THE CHARGE WATER LED WARNING LIGHT
ON THE JOYSTICK CONSOLE IF THE CHARGE WATER
PRESSURE DROPS BELOW 30 PSI. IT IS IMPORTANT TO
CONSTANTLY MONITOR THE WARNING LIGHT AND CHARGE
PRESSURE GAUGE TO AVOID LOW CHARGE WATER
PRESSURE THAT COULD CAUSE THE CLUTCH TO CYCLE
WHICH WILL SHORTEN THE LIFE OF THE CLUTCH PLATES
AND CLUTCH FLUID.
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