Kubota SM-E4B Series User Manual

GENERAL
SM-E4B SERIES, WSM
G-23
[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.
9Y1210785GEG0030US0
Adjustable cylinder
location of piston
Number of cylinders Valve arrangement
Z482-E4B
Z602-E4B
D722-E4B
D782-E4B
D902-E4B
Intake
valve
Exhaust
valve
Intake
valve
Exhaust
valve
No.1 ++++
No.2 ,+,+
No.3 – – +,
Intake and exhaust valve
clearance (cold)
Factory specification
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-E4B, Z602-E4B
[b] D722-E4B, D782-E4B, D902-E4B
KiSC issued 01, 2013 A

Kubota SM-E4B Series Specifications

General

Brand	Kubota
Model	SM-E4B Series
Category	Engine
Language	English