Operation
50940411/G0219 78 Printed in U.S.A.
Engine Stalling
If the engine should stall for any reason during
operation, always turn the ignition key all the
way counter-clockwise to the “OFF” position
before re-starting the engine according to
“Starting the Engine” on page 75.
Diesel Particulate Filter (DPF)
Regeneration Procedures
Models RT175 and RT210 with Tier 4
Engines
The Diesel Particulate Filter (DPF) treats exhaust
emissions in compliance with Tier 4 emission
standards. The DPF filter relies on high exhaust
temperatures. Periodic DPF maintenance
(regeneration) is required, dependent upon machine
operation load / temperature.
IMPORTANT:
Machines operated primarily at
high loads and operating temperatures require less
frequent DPF maintenance. Extended periods of
engine idling rapidly increases DPF soot levels,
requiring more frequent regeneration operations.
There are 4 modes of DPF regeneration:
• Passive / Assist Regeneration: Occurs automati-
cally without operator input. Passive/assist
regeneration does not effect machine operation.
• Reset Regeneration: Occurs automatically, but
can be inhibited by the operator. Increases
exhaust gas temperatures. Reset regeneration
occurs approximately every 100 hours of opera-
tion. See “Reset Regeneration” on page 79.
NOTE:
Reset regeneration effectiveness is
improved if the machine is operated at mid- to
high-throttle settings while this mode is in prog-
ress.
• Stationary Regeneration: Requires operator
action to initiate and takes approximately 25-30
minutes to complete. See “Stationary Regenera-
tion” on page 79.
• Recovery Regeneration: Requires operator
action to initiate and takes approximately 25-240
minutes to complete. See “Recovery Regenera-
tion” on page 84.
IMPORTANT:
The machine cannot be oper-
ated and must be parked in a well-ventilated
area away from flammable materials when sta-
tionary or recovery regeneration is in progress.
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