Buhler 2180 - Manual (Page 231)

SECTION 3 - LUBRICATION AND MAINTENANCE
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EVERY 600 HOURS
OPERATION 47
ADJUST 2WD FRONT AXLE WHEEL
BEARINGS
1. Block the rear wheels front and rear to prevent
movement.
2. Raise one side of the front axle until the wheel is
off the ground. Put a support under the front axle.
3. Remove the hub cap, 1, from the hub, 2.
4. Remove the cotter pin, 3.
5. Turn the wheel as you tighten the hex nut, 4, to a
torque of 20 N·m (15 ft.-lbs.). Back off the hex nut
until the first slot where the cotter pin can be
installed is aligned with the hole in the spindle.
6. Install the cotter pin, 3, in the spindle, 5.
7. Install the hub cap, 1, on the hub, 2.
8. Raise the axle and remove the support.
9. Adjust the other wheel bearing.
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OPERATION 48
CHECK ENGINE VALVE CLEARANCE
Check valve clearance with the engine cold.
The correct valve clearance is:
Inlet 0.36 mm - 0.46 mm (0.014″ - 0.018″)
Exhaust 0.43 mm - 0.53 mm (0.017″ - 0.021″)
Remove the rocker cover and adjust as follows:
1. Turn the crankshaft until any pair of valves in the
“Valves Open” column is fully open. Check and
adjust the corresponding pairs of valves in the
“Valves to Adjust” column.
Valves Open Valves to Adjust
1 inlet/3 exhaust 4 exhaust/6 inlet
5 inlet/6 exhaust 1 exhaust/2 inlet
2 exhaust/3 inlet 4 inlet/5 exhaust
4 exhaust/6 inlet 1 inlet/3 exhaust
1 exhaust/2 inlet 5 inlet/6 exhaust
4 inlet/5 exhaust 2 exhaust/3 inlet
2. Slide a feeler gauge, 1, of the correct thickness
between the valve stem, 2, and rocker arm, 3.
3. Turn the rocker arm adjusting screw, 4, until the
proper clearance is obtained. Turn the screw
clockwise to reduce clearance and counterclock-
wise to increase clearance.
4. Repeat the process until all the valves have been
checked and adjusted.
5. Install the rocker cover. Use a new gasket if the
original shows damage.
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