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Owner’s Manual for Mobile Generator 27
Section 3: Operation
Overview
The engine can be started in low-idle or at normal
operating speed (1,800 rpm). In cold weather, it is
recommended to start the engine in low-idle condition,
and idle for up to one minute. That allows the engine oil
to heat up before increasing engine speed and applying
load. If the engine is in an idle condition for an extended
period, the ETM may drive a higher engine speed to
generate more heat and activate a regeneration.
IMPORTANT NOTE: The breaker cannot be closed
while engine is in low-idle condition, as such load
cannot be applied.
Low idle speed is 1,100 rpm.
Prestart Checklist
All items in the prestart checklist must be completed
before starting the unit. This checklist applies to both
manual and remote starting of the unit.
 Read and understand all safety guidelines. See
Introduction and Safety .
 Perform daily maintenance and other periodic
maintenance. See
Maintenance .
 Verify the unit is level.

Verify no water is inside, on, or near the unit. Dry if
needed.

Ground the unit in accordance with all applicable
local, state, and National Electrical Code (NEC)
guidelines.
 Verify all circuit breakers are OFF (O).

Inspect all electrical cords. Repair or replace any that
are cut, worn, or bare.

Verify oil, coolant, DEF, and fuel levels are correct, in
accordance with the OEM engine manual.

Verify battery connections are secure.
 Check engine fan belt tension and condition.

Check engine fan belt guard.
 Check engine exhaust system for loose or rusted
components.
 Verify all covers are in place and secure.

Verify all electrical connections at the connection
lugs, if equipped, are tight and wired correctly.

Verify the link board is set to the desired voltage and
locked.

Verify the emergency stop switch is pulled out.
 Verify the radiator and surrounding shroud are clear
of debris.
 Turn the battery disconnect switch ON.

Open the fuel shutoff valve.
Cold Weather Operation
In cold environments, units equipped with starting aids
are recommended. See Cold Weather Starting Aids (If
Equipped) .
When starting a unit equipped with starting aids, observe
these guidelines:
•
Follow supplier instructions for starting aids
provided on engine.
•
An optional 24 VDC, 30 A battery charger can be
configured with the machine if needed and is
recommended if machine is equipped with fuel
filter heater or CCV heater. The shore power inlet
receptacle (120 V, 15 A [5-15P]) can be located on
the convenience receptacle panel. Shore power
will be required to utilize on-board battery charger.
When engine has started, the inlet receptacle can
be disconnected as charger will no longer be
needed if engine continues to run.
IMPORTANT NOTE: In cold temperatures, with the
engine off, the DC-powered heaters for cold starting
and cold-operation will deplete the engine-starting
batteries if the batteries are not being charged by the
optional onboard battery charger.
NOTE:
If alternate battery charger is being used please
see
Using An External Battery Charger
for correct
charger connection.
•
An optional coolant heater and oil pan heater can
be configured to aide cold weather starting. The
shore power inlet receptacle (125 V, 30 A) can be
located on the convenience receptacle panel.
Shore power will be required to utilize on-board
coolant and oil pan heater. If machine has been
stored at -40F (-40C) temperatures for 8 hours
more, preheat times up to 6 hours might be
required to provide adequate heating to coolant
(000100a)
Consult Manual. Read and understand manual
completely before using product. Failure to
completely understand manual and product
could result in death or serious injury.
WARNING
WARNING
Equipment damage. Do not attempt to start or operate
a unit in need of repair or scheduled maintenance.
Doing so could result in serious injury, death, or
equipment failure or damage.
(000291)