Handling Points; Fuel; Engine Oil; Prohibition Of Unnecessary Short-Time Operation - Kubota ZD1600 Series Operator's Manual

EXHAUST AFTERTREATMENT DEVICES

2. Handling points

When a specific amount of particulate matter (PM) has
accumulated in the DPF muffler, it is necessary to
refresh the DPF muffler by burning the PM inside it.
This burning off work is called "Regeneration".
To extend operating time to reach this regeneration,
and to avoid DPF muffler trouble, observe the following
handling matters.

2.1 Fuel

Use ultra low sulfur fuel (S15).
IMPORTANT :
• Use of diesel fuel other than ultra low sulfur fuel
may adversely affect the engine and DPF
performance.
Use of fuels other than ultra low sulfur fuel
(S15) may not meet regulations for your region.

2.2 Engine oil

Use DPF-compatible oil (CJ-4) for the engine.
IMPORTANT :
• If any engine oil other than CJ-4 is used, the
DPF may become clogged earlier than expected
and the fuel economy may drop.

DPF REGENERATION PROCESS

DPF regeneration process can be performed by choosing from "Auto regeneration" or "Regeneration inhibit" mode
according to your job conditions.
NOTE :
• For jobs not affected by hot gases emitted during regeneration, the "Auto regeneration" is advisable.
Start the engine (switch operation is unnecessary), the
"Auto regeneration" mode automatically activates.
How to activate each
mode
When a specific amount of PM has accumulated, and
the regeneration conditions are satisfied, the DPF will
be automatically regenerated whether the machine is in
Regeneration starts or is
motion or parked.
inhibited.
(See Tips on diesel particulate filter (DPF) regeneration
on page 34.)
In this way, work efficiency is improved.
See Operating procedure for auto regeneration mode
For more details.
on page 35.
ZD1611LF,ZD1611RLF,ZD1611RL
Auto regeneration mode
2.3 Prohibition of unnecessary short-time
operation
At the start of the engine, significant PM is generated.
Avoid running the machine (turning on and off the
engine) for a short period of time whenever possible, as
this will increase PM accumulation.

2.4 Regeneration

When there is "Regeneration" instruction sign by lamp
or buzzer, immediately perform the required procedure
for regeneration.
IMPORTANT :
• Interrupting the
continuing operation while ignoring the warning
signs may cause DPF and engine damage.
• Operation with a clogged air cleaner can cause
a regeneration failure and DPF damage.
Regeneration inhibit mode
After starting the engine, press the "Regeneration inhib-
it switch" for 5 seconds. The "Regeneration inhibit"
mode will activate with the switch lamp on.
The PM which has accumulated inside the DPF will not
be burnt.
The "Regeneration inhibit" mode is effective for work in
poorly ventilated work spaces.
See Operating procedure for regeneration inhibit mode
on page 41.
OPERATING THE ENGINE
regeneration cycle or
33