GILLIG LOW FLOOR, Руководство по обслуживанию

Страница: 102 / 506

Engine
02
Figure 3-18, Engine Mount
Engine Mount Care and Installation
Inspect the engine mounting brackets and bushings for wear, damage, or deterioration and replace parts
as needed. The mounts used are center bonded mounts. The engine mounts are an extremely impor-
tant factor in the overall longevity and quietness of the coach. Worn engine mounts allow the engine to
vibrate and/or move beyond acceptable limits putting strains on electrical wiring and fluid lines. They
can also have a profound effect on engine vibration, especially at idle RPM’s. For this reason, the en-
gine mounts should be inspected at the intervals specified by the Preventive Maintenance chapter of this
manual.
Another factor in engine mount failure is the presence of oils and fuels that may leak around the engine
compartment. This not only creates a fire danger (see the Preventive Maintenance chapter for engine
steam cleaning intervals), but these fluids are also corrosive to the rubber engine mounts, causing them
to deteriorate to the point of disintegration.
Install engine mounts as follows:
1. Install mount with the two mounting slots onto the frame bracket. Install nut/bolt/washers
loosely.
2. Set engine bracket on top of mount and line up M20 or M16 bolt hole on top of mount with the
hole on the engine bracket.
3. Tighten all fasteners.
Use an M20 center bolt and 5/8" nuts and bolts to attach the rear mounts to the engine and the
frame. For the mounts under the crankshaft pulley, use an M16 center bolt and 1/2" nuts and
bolts, which attach to the engine crossmember that sits below the engine. Lubed-thread torque
values are as follows:
5/8-11 ............. 113 lb-ft / 153 N-m
1/2-13 ............. 56 lb-ft / 76 N-m
M16 ................ 74-81 lb-ft / 100-110 N-m
M20 ................ 111-125 lb-ft / 150-170 N-m