Page 20 - Workshop Manual - Aumark (BJ1051)

01-14
Introduction-General Rules for Maintenance Operations

4. Removal and installation of engine intake system parts
(a) If any metal scraps are entrained into intake pipe, engine and turbocharger will be seriously
damaged.
(b) When removing and installing an intake
system part, seal air passage openings on
the part removed using clean rag or
sealing tape.

(c) When installing intake system parts,
make sure they are free of any metal
scraps.

01
5. Hose hoop operation
(a) Before removing a hose, check depth of
insertion of its connector and location of
its hoop for accurate reinstallation.
(b) If the hoop is deformed or dented,
replace.
(c) If the hose can be reused, be sure to let
the hoop clamp the impression
previously left.
(d) In the case of a spring hoop, its clamping
force can be adjusted by applying a force
in the direction shown by the arrow after
its installation is completed.
6. Vehicles equipped with selective catalytic reduction (SCR) device
Cautions:
A large amount of unburned fuel flowing into catalytic reduction device may cause excess
temperature resulting in fire hazard. To prevent such an accident, the following precautions
must be abided by during operation.
(a) Be sure to use lead-free diesel oil only.
(b) Avoid extended idling. Avoid idling your engine for more than 20 minutes.
(c) Avoid spark test.
• If not specially needed, never perform any spark test. If such a test is a must, be sure
to complete it as quickly as possible.
• During a spark test, never idle your engine.
(d) Avoid prolonged engine stress test. An engine stress test must be completed as quickly as
possible.
(e) Never run your engine when fuel in fuel tank is about to be used up so as to avoid engine
shutdown adding extra load to catalytic reduction device.

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