Tension Pulley, Crankshaft Gear And Camshaft Gear Removal, Check And Installation - Joyner JNSZ1600QL Owner's Manual

Fig.38
：
Note W ith belt removed
contacting. ——If belt need to be reused
foot of teeth) or dirt. If lightly suspected, replace it. Installation and adjustment
positioned at no.1 cylinder TDC
blocked at flywheel ring gear.
——Engage timing belt tooth with crankshaft grooves
with cam gear grooves. During the installation of used belt, insure belt is in the right direction and match
belt with appropriate tooth. With belt installed, 2 gears should not make any movement. ——Pull belt
around tension pulley carefully
should be no movement. ——Loosen 2 tension pulley mounting bolts
extreme (viewed from the direction of pulley )
crankshaft locking device. ——Rotate crankshaft clockwise (viewed from the pulley end) 2 turns until no.1
cylinder reaches its TDC of compression. ——Grab the midway of the right side belt between crankshaft
gear and camshaft gear with thumb and forefinger. If belt tension is as specified, belt may be twisted 90
To adjust belt tension ，
screwdriver as push rod ，
It may take 2- 3 times before tension is as specified. After adjustment, tighten tension pulley mounting
bolts to 16—20Nm.
——It is only a approximate method to adjust belt
professionals with special tools
6

. Tension pulley, crankshaft gear and camshaft gear removal, check and installation

【 】
1. Tension pulley Removal
——Crankshaft should be positioned at no.1 cylinder compression TDC. ——Install
belt tension pulley
，
d on't turn gear excessively
， c heck for improper wear ,delaminate crack (particularly at the
， i f necessary, crankshaft may only be turned slightly for adjustment and
， e ngage belt tooth with gear teeth grooves. Recheck both gears, there
，
l oosen 2 tension pulley mounting bolts and push tension pulley right side using
t hen tighten mounting bolts and rotate crankshaft. Recheck tension.
— —Rotate crankshaft to no.1 cylinder compression TDC.
： ： ： ：
——Remove belt.
——Loosen 2 tension pulley mounting bolts
release belt tension with a large screwdriver.
——Remove 2 mounting bolts and take out tension pulley. Installation
——Check bearing for rotating freely byturning tension pulley
play and radial clearance, if suspected, replace appropriate parts immediately.
， f inger screw in 2mounting bolts, then tighten to 16—20 Nm.
Fig.39
，
o r piston head and valve may be damaged for
， a nd pull belt up straight to the right engaging belt
， p ush tension pulley right to the
t ighten 2 tension pulley mounting bolts and loosen
，
and belt tension should be checked as soon as possible by
46
：
— —Crankshaft should be
， p ush tension pulley aside to
，
b earing end
° .
：