PREVOST LE MIRAGE XLII BUS SHELLS, Руководство по обслуживанию

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Section 01: ENGINE
PA1564
32
NOTE
Check if any spacer(s) have been installed
between power plant cradle and vehicle rear
subframe, and if so, note position of each
washer for reinstallation purposes.
36. Using a forklift, with a minimum capacity of
4,000 lbs (1 800 kg), slightly raise the power
plant cradle.
37. Pull engine out slowly from the engine
compartment. Make sure all lines, wiring and
accessories are disconnected and are not
tangled.
CAUTION
Due to the minimum clearance between the
power plant equipment and the top of the
engine compartment, extreme care should be
used to raise the power plant cradle, just
enough to free the cradle. Clearance between
power plant cradle and mounting rail should
range between ¼" and ½" (6-12 mm).
9. POWER PLANT ASSY. INSTALLATION
To install a power plant assembly, follow the
same procedure as in "Power Plant Assembly
Removal" except in reverse order, then proceed
with the following:
1. Torque the power plant cradle mounting
bolts to 190 lbf-ft (255 Nm).
2. If fan drive has been removed, reinstall and
align as per Section 05, COOLING
SYSTEM, under "FAN DRIVE
ALIGNMENT".
3. Refill cooling system with saved fluid (refer
to Section 05, COOLANT SYSTEM).
4. Once engine fuel system has been drained,
it will aid restarting if fuel filters are filled with
fuel oil (refer to Section 03, FUEL SYSTEM).
5. Start engine for a visual check. Check fuel,
oil, cooling, pneumatic and hydraulic system
connections for leakage. Test operation of
engine controls and accessories.
10. VALVE COVER REMOVAL
Refer to the series 60 Detroit diesel service
manual for injectors and valves adjustment.
Wait until engine is cold prior to working on
vehicle.
1. Remove air intake pipe.
2. Remove the after CAC (Charger-Air-Cooler)
air pipe.
3. Disconnect ventilation pipe from valve cover.
4. Remove last seat to access trap door
located in the middle rear end of vehicle.
5. Remove engine cover.
6. Adjust Jake brakes (if applicable), injectors
and valves using Detroit Diesel service
manual for series 60 engines.
7. Verify engine cover gasket and replace if
necessary.
NOTE
New gasket must be ordered directly from
Detroit Diesel.
8. Reinstall engine cover with a tightening
torque of 18-22 Lbf-ft (25-30 Nm).
9. Connect ventilation pipe to engine cover.
10. Reinstall air intake and after CAC air pipes.
11. Reinstall trap door.
11. JAKE BRAKE
Refer to both "The Jake Brake Troubleshooting
and Maintenance Manual" and "Installation
Manual for Model 790 Engine Brakes" for
troubleshooting and installation procedures.
They are annexed at the end of this section.
12. ENGINE MOUNTS
The power plant assembly is mounted to the
cradle by means of rubber mounts.
Two rubber mounts are used at the front of the
engine while two others are mounted on each
side of the flywheel housing (Fig. 13).
It is recommended that new rubber mounts be
installed at each major overhaul.