wsm L3301 Workshop Manual page 183

L3301, L3901, L4701, WSM
Filter Comp (DPF) (If necessary)
IMPORTANT
• Always work in the workshop equipped with a electric hoist
(including mobile hoist).
• Put a product (engine) on a stable ground, and set the
parking brake.
• As the DPF muffler full assembly is hot just after the engine
shutdown, make sure to start operation after it gets cool.
• Make sure not to let any foreign substances enter the
opening section during the operation.
• Make sure not to damage the DPF muffler full assembly by
falling or impact as it contains a ceramic filter.
• Before removing the DPF for cleaning or replacing, keep
the records of the engine serial number, DPF muffler full
assembly part number, DPF muffler full assembly serial
number, and engine operating time, which are required in
preparing the DPF cleaning order form.
Since the engine operating time is recorded in the ECU,
check the operating time by connecting the service tool
(Diagmaster).
• When installing and removing the DPF muffler full
assembly, make sure that the temperature sensor,
differential pressure sensor, and differential pressure pipe
do not make contact with surrounding parts.
• Be sure to loosen the temperature sensor tightening nut or
the differential pressure pipe tightening nut with crowfoot
wrench to prevent the damage of the sensor or pipe. If it is
still hard to loosen, apply the lubricant spray to threaded
portion and soak it with lubricant.
1. Remove the hoses (4), (6) from the differential pressure pipes
(3), (7).
2. Remove the differential pressure sensor (5).
3. Remove the DPF mounting clamp band (9).
4. Separate the Diesel Oxidation Catalyst (DOC) (10), Diesel
Particulate Filter (DPF) (12), DPF outlet body (13) respectively.
(1) Temperature Sensor (T )
0
(2) Temperature Sensor (T )
1
(3) Differential Pressure Pipe
(4) Hose
(5) Differential Pressure Sensor
(6) Hose
(7) Differential Pressure Pipe
1-S20
ENGINE
(8) Temperature Sensor (T )
2
(9) Filter Comp (DPF) Mounting Clamp
Band
(10) Diesel Oxidation Catalyst (DOC)
(11) Gasket
(12) Diesel Particulate Filter (DPF)
(13) DPF Outlet Body
(To be continued)
KiSC issued 09, 2016 A