DCA70SSIU4F 60 HZ GENERATOR DSE8610 MKII • OPERATION MANUAL — REV. #0 (08/11/22) — PAGE 31
3. NEVER overfill the fuel tank — It is important to read
the fuel gauge when filling the trailer fuel tank. DO NOT
wait for fuel to rise in the filler neck (Figure 27).
Figure 27. Full Fuel Tank
Figure 28. Fuel Expansion
FUEL
LEVEL
FUEL GAUGE LOCATED
ON CONTROL PANEL
CAUTION
DO NOT OVERFILL the fuel system. Leave room for
fuel expansion. Fuel expands when heated (Figure 28).
Heat Source
!
!
Fuel
EXPANDS
When Heated!
DEF REFUELING
Diesel exhaust fluid is an aqueous solution made with
32.5% high purity urea (carbamide) and 67.5% deionized
water. DEF is used as a consumable in selective catalytic
reduction (SCR) in order to lower NO
x
concentration from
diesel exhaust emissions.
1. Make sure the engine is OFF.
2. Remove the filler cap from the DEF tank (Figure 29).
Figure 29. DEF Tank Filling
3. Upon initial start-up, completely fill the DEF tank with
DEF fluid. DO NOT overfill.
DEF Refueling (Continuous Operation)
It is recommended to shut down the engine prior to
refilling the DEF tank. However, in special applications
where shutdown is not possible, it is recommended to
ONLY refill the DEF tank when the fluid level has been
consumed down to 50%.
The DEF level sending unit requires a gradual DEF level
decrease during continuous operation to validate proper
operation. Failure of this sensor to report the decrease could
result in an engine shutdown. An engine service technician
would be required to remedy the shutdown.
NOTICE
ONLY fill the DEF tank with diesel exhaust fluid. Any
other type of fluid may cause severe engine damage.
DEF
TANK
CAP
70
DEF FILLER
PORT
100
50
75
25
0
INSPECTION/SETUP
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