Check Point Of Every 800 Hours - Kubota SM-E4B Series Workshop Manual

SM-E4B SERIES, WSM

[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.
Adjustable cylinder
location of piston
No.1
No.2
No.3
: When No. 1 piston is at the compression top dead center position.
: When No. 1 piston is at the overlap position.
Intake and exhaust valve
Factory specification
clearance (cold)
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.
(1) Cylinder Head Cover
(2) "1TC" Mark
(3) Alignment Mark
G-23
Number of cylinders Valve arrangement
D722-E4B
Z482-E4B
D782-E4B
Z602-E4B
D902-E4B
Intake Exhaust Intake
valve valve valve
– –
0.145 to 0.185 mm
0.00571 to 0.00728 in.
A: Gear Case Side
[a] Z482-E4B, Z602-E4B
[b] D722-E4B, D782-E4B, D902-E4B
9Y1210785GEG0030US0
KiSC issued 01, 2013 A
GENERAL
Exhaust
valve