Bobcat 743 - Page 13

NOTE: Remove the bolt used to lock
the auxiliary lever during
shipment before you use the
auxiliary (See Page 36, Fig.
81).
Auxiliary Lever
The right steering lever is also the
control lever for the auxiliary hydraulic
system (Fig. 16). Move the lever to the
left or to the right to activate auxiliary
and to operate an attachment
(Example: To open the grapple teeth).
Move the lever in the opposite direction
to reverse the action of the attachment.
Move the lever farther to the right to
put the valve into "detent" position.
This will give a constant flow of oil to
the attachment such as a backhoe.
Fig.
16 Auxiliary Control (Detent)
BEFORE YOU START THE ENGINE
Check all items shown under "EVERY 10 HOURS" on the Service Schedule Decal
(Fig, 17) and checklist (Fig, 18).
SERVICE
SCHEDULE
EVERY 10 HOURS
1. Engine Oil - check level-do not overfill (See oil specification belowl.
2. Engine Air Filter (empty dust cap - change element if needed).
3. Engine Cooling System - clean debris from cooling fins, shrouds, and grills - check
coolant level cold, add 50-50 ethylene glycol- water as needed and check fan and
pump drive belts for condition and tension (liquid coolad only).
4. Loader Lift Arm and Cylinder Pivot Points - lubricate 10 points with multipurpose
lithium base grease (12 point on 300 series loadersl.
5. Tires - check inflation pressure (flotation 35 PSI (241 kPal standard 50 PSI (340
kPaJl (5.70 x 1240 psi [275 kPaJl-inspect for cuts.
6. Engine Air System - check for leaks and damaged components.
7. General - check for loose or broken parts, damaged seat belt or operator guard,
instrument operation, loose wheel nuts, and oil leaks, etc.
8. Fuel Filters - remove trapped water.
EVERY 50 HOURS
1 . Engine Oil - drain hot and change filter (every 25 hours on 310 loader). See
Operator's Manual for recommended fluid.
2. Hydraulic Fluid - check the fluid level. See your Operator's Manual for recommended
fluid.
3. Chain Case - check the fluid level. See your Operator's Manual for recommended
fluid.
4. Battery - check condition.
5. Controls and Brakes - check operation, adjust if needed.
EVERY 100 HOURS
1 . Hydraulic System - change filter.
2. Ignition System - check plugs, points and timing-replace faulty parts (gasoline
onlyl.
3. Spark Arrestor Muffler - empty spark chamber.
EVERY 200 HOURS
1. 843 Final Fuel Filter - replace filter element.
2. 843 Primary Fuel Filter - clean sediment bowl.
EVERY 500 HOURS
1 . Hydraulic System - change bronze filter.
2. Drive Line - grease U-joint with approved grease recommended in Service Manual.
EVERY 1000 HOURS
1. Hydraulic Case - drain fluid and replace. See your Operator's Manual for
recommended fluid.
2. Chain Case - drain fluid and replace. See your Operator's Manual for recommended
fluid.
See operator's manual for more instructions.
Weitere instrucktionen finde" sie in der Bedienungsanleitung.
Consulta el Manual del Operador para mas instrucci6nes.
Se reporter au manual de I'opinateur pour plus enseignements.
Fig. 17 Service Schedule
-7-
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TRANSMISSION
OIL FILTER
CHAIN CASE
6561387
743 Loader
Operator's Manual