43
Cylinder and
valve number
1
2
3
4
1
2
3
4
5
6
7
8
Valve
I = Inlet E = Exhaust
I
E
I
E
I
E
I
E
NOTE:
No. 1 cylinder is at the front of engine.
if adjustment is needed:
- loosen the lock nut and adjust the clearance by turning the adjusting screw on the valve rocker,
- retighten the lock nut while keeping the adjusting screw in position,
- recheck the valve clearance,
to check/adjust the clearance of No. 1 cylinder valves rotate the crankshaft in the normal direction
until the inlet valve 7 of No. 4 cylinder has just opened and the exhaust valve 8 of the same
cylinder has closed completely,
set the valves 3 and 4 of No. 2 cylinder as indicated above for No. 4 cylinder. Then check/adjust
the clearances of the valves 5 and 6 of No. 3 cylinder,
set the valve 1 and 2 of No. 1 cylinder as indicated above for No. 4 cylinder. Then check/adjust
the valves 7 and 8 of No. 4 cylinder.
set the valves 5 and 6 of No. 3 cylinder. Then check/adjust the valve 3 and 4 of No. 2 cylinder.
5.4. Electrical system.
The electrical system is connected to battery after earth switch is switched on (1-Fig. 4.2).
WARNING:
!
To avoid damage to the alternator charging system, observe following service
precautions:
NEVER make or break any of the charging circuit connections, including the
battery, when the engine is running.
Washing
tractor, be careful and don’t let water enter into the alternator and
starter motor.
NEVER short any of the charging components to earth.
ALWAYS disconnect the battery earth terminal when installing or removing the
alternator.
DO NOT use a slave battery of higher then 12 volts nominal voltage.
ALWAYS disconnect the battery earth cable when charging the battery in the
tractor using a battery charger.
ALWAYS observe correct polarity when installing a battery or using a slave
battery to jump-start the engine.
ALWAYS disconnect the battery earth cable before carrying out arc welding on
the tractor or on any implement attached to the tractor.
