Gehl R105 (EU), Operator'S Manual

Page: 59 / 118

50950260/AP1216 55
Diesel Particulate Filter (DPF) Regeneration
Procedures (DPF Models)
The Diesel Particulate Filter (DPF) treats exhaust emissions in compliance with Tier
4 / Stage 3B emission standards. The DPF filter relies on high exhaust temperatures.
Periodic DPF maintenance (regeneration) is required, dependent upon machine
operation load / temperature.
Note: Machines operated primarily at high loads and operating temperatures
require less frequent DPF maintenance. Extended periods of engine idling rap-
idly increases DPF soot levels, requiring more frequent regeneration operations.
There are three modes of DPF regeneration:
• Passive / Assist Regeneration: Occurs automatically without operator input.
Passive/assist regeneration does not affect 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 operation. See “Reset Regeneration” on page 56.
Note: Reset regeneration effectiveness is improved if the machine is operated at
mid- to high-throttle settings when reset regeneration mode is in progress.
• Stationary Regeneration: Requires operator action to initiate and takes approxi-
mately 25-30 minutes to complete. See “Stationary Regeneration” on page 57.
Important: The machine cannot be operated and must be parked in a well-ventilated
area away from flammable materials when stationary regeneration is in progress.
There is a possibility of carbon monoxide poisoning if
stationary regeneration occurs in an enclosed space.
Always perform stationary regeneration in a well-ventilated area.
During regeneration, there will be high exhaust gas
temperatures, even at low load. Stay clear of the DPF
during regeneration.
WARNING
WARNING