Arctic Cat HDX 500 2017, Руководство по обслуживанию

Страница: 92 / 190

91
5. Install the coolant hose onto the crankcase union and
tighten the clamp.
C. Cylinder Head
D. Valve Cover

NOTE: Steps 1-5 in the preceding sub-section must
precede this procedure.
6. Place the chain guide into the cylinder.
CF058A
7. Place a new head gasket into position on the cylin-
der. Place the alignment pins into position; then
place the head assembly into position on the cylin-
der.
CC020D
CF057A
8. Install the four cylinder head cap screws and wash-
ers. Tighten only until snug.
CC272D
9. Loosely install the five cylinder head nuts.
10. Using a crisscross pattern, tighten the four cap
screws (from step 8) initially to 20 ft-lb; then to 30
ft-lb, and tighten to a final torque of 37 ft-lb.
11. Tighten the 8 mm nuts from step 9 to 18 ft-lb and the
6 mm nuts to 8 ft-lb; then tighten the two cylinder-to-
crankcase nuts (from step 4) securely.
12. With the timing inspection plug removed and the
cam chain held tight, rotate the crankshaft until the
piston is at top-dead-center.
H1-040
13. Install the rear cam chain tensioner guide into the
cylinder head. Install the pivot cap screw and washer.
CD461

NOTE: At this point, oil the camshaft journals, cam
lobes, and the three seating surfaces on the cylinder.
14. With the alignment pin installed in the camshaft,
loosely place the cam sprocket (with the recessed
side facing the cam shaft lobes) onto the camshaft.
At this point, do not “seat” the sprocket onto the
shaft.
CAUTION
Care should be taken that the bottom of the chain guide
is secured in the crankcase boss.