CAMSHAFT
Cleaning
And Checking The Camshaft
Clean the camshaft in solvent and wipe it dry. Check the camshaft lobes for damage and war. The camshaft does not need
replacement unless the lobe lift is worn more than
0.005 inch (0,127 mm).
The lift of the camshaft lobes can get check with the camshaft installed in the engine or on the centers. Make reference
to Page
78-10
Camshaft Lobe Lift.
CRANKSHAFT
Checking The Crankshaft
Measure the diameter of each journal in at least four locations
to
look for out of round taper
or
smaller size conditions.
FLYWHEEL
Checking The
Flywheel
Check the flywheel for cracks,
or
other damage.
Check the ring gear of r wear and damage to the teeth.
If the teeth have damage, install a
new
ring gear.
With the flywheel installed on the crankshaft, check the flywheel surface alignment.
CONNECTING RODS
Cleaning
The Connecting Rods
Remove the bearings from the rod and cap. Mark the bearings for identification if you are to use them again. Clean the
connecting rods in solvent, including the rod bore and under the bearings. Clean all passages with compressed air using
a low air pressure.
Checking The Connecting Rods
Check the connecting rod bearing bores for out of round and taper. Check the inside diameter of the connecting rod piston
pin bore.
If the pin bore in the connectin9 rod is larger than the specification, install a 0.002 inch oversize piston pin. First
fit the oversize piston pin to the piston
pin bore by using a reamer tool Then assemble the piston, the piston pin and the
connecting rod.
Revised Oct. 97
-7B-19-
741,742,743,74305
Bobcat Loader
Service
Manual
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