Bobcat 743 - Engine Service

ENGINE SERVICE
AWARNING
Stop, cool and clean the engine
of flammable material. Never
service or adjust machine with
engine running unless
instructed to do so.
Open the rear door to service the
engine. Pull the door latch up and to the
left to release the door latch (Fig. 40).
B-3853
Fig. 40 Releasing Rear Door
The door can then be fully opened to get to the engine.
ADJUSTING DOOR LATCH
Loosen the set screw. Turn the nut on the end of the latch pin (Fig. 41). The door
must contact the machine at the bottom (Fig. 42, Item 1) and the top with the lever
in the position shown in (Fig. 42). It will take approximately 50 Ibs. of force to push
the latch down. When the latch is adjusted correctly tighten the set screw. The set
screw must be aligned with the flat surface of the bolt.
AWARNING
AIR CLEANER SERVICE
Keep the rear door closed except for
service. Make sure you close the door
and fasten the latch tightly before
operating the Bobcat loader.
It is important to service the air cleaner system at regular intervals for good engine
performance and long service life.
The large air cleaner element (outer) must be replaced when the red ring shows in the
window of the condition indicator (Fig. 43, Item 1). DO NOT remove the inner filter.
Service as follows:
1. Loosen the clamp on the dust cup (Fig. 44, Item 1). Remove the dust cup and
the element. Remove the rubber boot (Fig. 44, Item 2) and empty the dust cup.
2. Clean the inside of the filter housing so that the element has a smooth surface to
contact at the seal (Fig. 44, Item 3) from corrosion, especially if the Bobcat
loader is used in a fertilizer application.
3. Install the outer filter element. Replace the inner filter element (Fig. 44, Item 4)
every third time of servicing or if the red ring still shows, in the indicator window
after replacing the outer element.
4. Install the dust cup and tighten the clamp.
-20-
B·4101
Fig. 41 Adjusting Latch
o
B-4099
Fig. 42 Closing Door
Fig. 43 Condition Indicator
743 Loader
Operator's Manual