Winco MDS50 - Manual (Page 5)

Page 3
COOLANT REQUIREMENTS
The cooling system of this engine has been filled at the
factory with a 50% water and 50% ethylene-glycol
antifreeze and the proper amount of supplemental
coolant additives. This mixture provides protection to -37
degrees F.
When replenishing coolant or changing coolant refer to
your John Deere engine manual for the proper type and
mixture of water, antifreeze and supplemental coolant
additives.
WARNING: EQUIPMENT DAMAGE
Failure to properly follow John Deere’s requirements for
antifreeze and supplemental coolant additives can lead to
permanent damage to your engine cylinder liner walls.
COOLANT QUANTITY US Gal Liters
MDS50 6.67 25.3
BATTERY CONNECTION
INSTRUCTIONS
WARNING! EQUIPMENT DAMAGE
FAILURE TO PUT THE ENGINE CONTROL SWITCH IN
THE ‘OFF’ POSITION PRIOR TO CONNECTING THE
BATTERY CABLE(S) MAY RESULT IN DAMAGE TO
THE ECM. (SOLID STATE ENGINE CONTROL MOD-
ULE).
The MDS50 requires a customer supplied 12 volt group
27 battery with minimum 675 CCA. A battery mounting kit
has been supplied loose with the unit. When connecting
the battery, ALWAYS CONNECT THE POSITIVE CABLE
FIRST and THE NEGATIVE CABLE LAST! Disconnecting
the battery is done in reverse, disconnecting the negative
cable first and then the positive cable.
WARNING - POTENTIAL BATTERY EXPLOSION
THIS UNIT USES A NEGATIVE GROUND. CONNECT-
ING THE NEGATIVE CABLE FIRST MAKES THE
BATTERY POSITIVE TERMINAL HOT. CONNECTING
THE POSITIVE CABLE LAST MAY RESULT IN ACCI-
DENTAL SHORT CIRCUIT OF THE POSITIVE BAT-
TERY TERMINAL TO ANY OF THE SURROUNDING
METAL SURFACES. (I.E. DROPPING A TOOL,
WRENCH SWING ETC.) USE EXTREME CAUTION
WHENEVER MAKING OR BREAKING THE BATTERY
CONNECTIONS AND FOLLOW THE CORRECT
SEQUENCE CAREFULLY.
NEVER ATTEMPT TO JUMP START THIS ENGINE.
If the battery should accidentally become discharged
disconnect the battery cables and recharge the battery
before attempting to start the unit. Boost/jump starting
this unit improperly will result in PERMANENT DAMAGE
TO THE ENGINE CONTROL MODULE (ECM).
DESCRIPTION AND IDENTIFICATION
A. FRONT PANEL
1. Starting Controls - This unit is equipped for manual
or automatic start. A three position switch controls the
engine starting.
a. “Off” - This switch position stops the engine and
disconnects the power from the engine control module. It
is intended to safely allow service and maintenance
checks on the engine
b. “RUN” - This switch position engages the start
circuitry in the engine control panel. The engine control
module goes into a 12 second start delay and then the
starter is engaged. The engine control module in the
control panel will disengage the starter when the unit
starts and engage the engine monitoring sensors.
c. “AUTO” - This switch position is used when the
MDS50 is used in a standby mode. With the switch in this
position a remote contact (i.e. Automatic Transfer Switch)
can be closed to engage the start circuitry. A terminal
block has been provided behind the customer connection
door for you to wire your remote contact into. This remote
contact must close to provide a path between the start
wire and battery negative.
2. DC Control Circuit Breaker (DCCB) - The 15 amp
DC Circuit Breaker protects the engine controller and
wiring harness against faults in wiring or control equip-
ment. The DCCB also prevents a discharge of the battery
due to a circuit fault.
3. Emergency Stop Switch - When depressed this
switch will disconnect all the 12 volt power to the engine
control panel shutting the engine down. The lamp in the
emergency stop switch will light up when the switch is
depressed showing that the power to the panel has been
disconnected.
4. Engine Instruments
a. Oil pressure monitor gauge (OPG) - The oil
pressure gauge is mounted on the front control panel and
indicates the engine oil pressure. The gauge serves a
dual function. In addition to displaying the oil pressure it
also provides the shutdown signal to the engine control
module if the pressure should drop too low. The shut-
down signal is factory preset at 15 psi (103 kPa/m sq).