Hyster E019, Руководство по обслуживанию и ремонту

Страница: 17 / 21

600 SRM 1068 Cylinder Head Assembly Repair
Figure 7. Rocker Arm Assembly
CAUTION
Loosen any tappet adjustment screws that may
tighten during the following procedure.
4. Verify that the alignment of the rocker arms
and the push rods is correct. Install the nuts
and washers on the studs that hold the brackets
for the rocker arm shafts to the cylinder head.
Tighten the nuts evenly. Begin tightening the
nuts at the center of the rocker arm shaft and
tighten in sequence towards the ends of the
shaft. The final torque on the nuts is 75 N•m
(55 lbf ft).
5. Check and adjust valve tip clearances. See Valve
Clearance Adjustments.
VALVE CLEARANCE ADJUSTMENTS
The valve clearance is measured between the top of
the valve stem and the rocker arm as shown in Fig-
ure 8.
Valve clearance (hot or cold)
Inlet
Exhaust 0.20 mm (0.008 in.)
0.45 mm (0.018 in.)
Number one cylinder is at the front of the engine.
The inlet valve is the first valve in the sequence. See
Figure 9.
1. Turn the crankshaft in the normal direction of
rotation until the inlet valve of number six cylin-
der has just opened and the exhaust valve of the
same cylinder has not fully closed. Check the
clearances of the valves of number one cylinder
and adjust them as necessary.
Figure 8. Valve Clearance Adjustment
Figure 9. Valve Positions
NOTE:
The torque for the locking nut is 27 N•m
(21 lbf ft).
2. Turn the crankshaft in the normal direction of ro-
tation until the inlet valve of number two cylin-
der has just opened and the exhaust valve of the
same cylinder has not fully closed. Check the
valve clearances on number five cylinder and ad-
just them as necessary.
7