Kubota D662-E2B, Workshop Manual

Page: 44 / 142

G-22
SM-E2B SERIES, WSM G GENERAL
[12] CHECK POINT OF EVERY 800 HOURS
Checking Valve Clearance
IMPORTANT
■
• Valve clearance must be checked and adjusted when engine
is cold.
1. Remove the cylinder head cover (1) and the glow plugs.
2. Align the “1TC” mark (2) on the flywheel and alignment mark (3)
on the rear end plate so that the No. 1 piston comes to the
compression top dead center.
3. Check the following valve clearance marked with “
★
” using a
feeler gauge.
4. If the clearance is not within the factory specifications, adjust with
the adjusting screw.
5. Then turn the flywheel 6.28 rad (360 °), and align the “1TC” mark
(2) on the flywheel and alignment mark (3) on the rear end plate
so that the No. 1 piston comes to the overlap position.
6. Check the following valve clearance marked with “
✩
” using a
feeler gauge.
7. If the clearance is not within the factory specifications, adjust with
the adjusting screw.
★
: When No. 1 piston is at the compression top dead center position.
✩
: When No. 1 piston is at the overlap position.
NOTE
■
• The sequence of cylinder numbers is given as No. 1, No. 2
and No. 3 starting from the gear case side.
• After adjusting the valve clearance, secure the adjusting
screw with the lock nut.
W10113200
Number of cylinders
Valve arrangement
Adjustable cylinder
location of piston
Z482-E2B
Z602-E2B
D662-E2B
D722-E2B
D782-E2B
D902-E2B
Intake
valve
Exhaust
valve
Intake
valve
Exhaust
valve
No. 1
★ ★ ★ ★
No. 2
✩ ★ ✩ ★
No. 3 – –
★ ✩
Intake and exhaust
valve clearance (cold)
Factory spec.
0.145 to 0.185 mm
0.00571 to 0.00728 in.
(1) Cylinder Head Cover
(2) “1TC” Mark
(3) Alignment Mark A : Gear Case Side
[a] Z482-E2B, Z602-E2B
[b] D662-E2B, D722-E2B,
D782-E2B, D902-E2B
KiSC issued 06, 2006 A