Reference
Only
POWER TRAIN
18000 SERIVCE/MAINTENANCE MANUAL
7-18
Published 12-05-17, Control # 035-23
Maintenance
Accumulated ash must be periodically cleaned from the DPF
center section. A build-up of ash can result in cold spots and
compact the ash within the DPF. This reduces the life of the
filter, can damage it, and may increase the time required for
regeneration.
In the United States, the Environmental Protection Agency
requires that cleaning of the DPF be done at a minimum
service interval of 4,500 operating hours, (roughly every two
years of one-shift operation). This cleaning requires special
tools using equipment specifically made for this purpose.
The DPF cannot be cleaned using conventional methods.
For this reason, it is recommended that the DPF be sent to
the manufacturer for cleaning, or exchanged for a clean DPF
if operation of the crane is critical. The DPF must be
removed, sent for cleaning, then the cleaned DPF or a
replacement installed.
DPF Removal
for the following procedure:
For inspection and/or cleaning, the DPF must be removed. It
may be re-usable.
NOTE:
The DPF must be removed
and replaced
if engine
Fault Code 1981 or 1922 has been noted and the
DPF is contaminated with coolant.
1.
Disconnect the crane’s batteries by disconnecting the
negative battery cable first and the positive battery cable
last or turn the battery disconnect to the “Disconnect”
position and remove the key.
2.
Removed engine enclosure panels and bracing (3) as
needed for clearance to DPF.
3.
Disconnect the electrical wiring to the DPF. Remove
wiring harness and P-clamp mounts on the DPF and lay
to the side.
4.
Loosen (but do not remove) V-band clamp and gasket
(6) from the inlet side of the DPF. Slide clamp and gasket
onto inlet tube.
5.
Loosen screws, locknuts, and washers securing inlet
tube support bracket or remove U-bolt guillotine clamp
to free inlet tube assembly.
6.
Disconnect inlet tube assembly (8) from DPF.
7.
Loosen (but do not remove) V-band clamp and gasket
(2) from the outlet side and slide onto outlet tube.
8.
Loosen screws, locknuts, and washers securing outlet
tube support bracket or remove U-bolt guillotine clamp
to free outlet tube assembly.
9.
Disconnect outlet tube assembly (1) from DPF.
DANGER
Electrical Shock Hazard!
Ensure that the battery cables are disconnected from the
batteries before loosening any electrical connections.
WARNING!
Explosion Hazard!
Batteries can explode and emit explosive gas. To reduce
the chance of injury, always ventilate the area before
servicing the batteries. Always remove the negative
battery cable first and attach the negative cable last.
WARNING
Burn and Inhalation Hazards!
Temperature of exhaust and exhaust components for
Tier 4 engines can be higher than other engines.
To prevent death or serious injury:
•
Allow engine and diesel particulate filter to cool
before performing maintenance.
CAUTION
Engine Damage!
To avoid possible engine fault codes and undesirable
operation, make sure engine ignition switch has been off
five minutes before disconnecting batteries.
Do not rely on this switch to protect crane’s electronic
systems when welding. Disconnect battery cables at
batteries before welding.
Содержание 18000
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Страница 210: ...R e f e r e n c e O n l y NOTES SKETCHES AND PHOTOGRAPHS ...
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