Check Points Of Every 1500 Hours - Kubota B1830 Workshop Manual

B1830,B2230,B2530,B3030, WSM

[9] CHECK POINTS OF EVERY 1500 HOURS

Valve Clearance 2 (CABIN Model)
IMPORTANT
• Valve clearance must be checked and adjusted when
engine is cold.
1. Remove the head cover and the glow plugs.
2. Check and adjust the valve clearance at the both valves
compression top dead center.
3. If the clearance is not within the factory specifications, adjust
with the adjusting screw.
• Firing order
3-cylinder: 1 → 2 → 3
4-cylinder: 1 → 3 → 4 → 2
• Check and adjust the valve clearance following the firing order
shown above.
Valve clearance Factory specification
(1) Adjusting Screw
(2) Lock Nut
Fuel Injection Pressure
1. Set the injection nozzle to a nozzle tester.
2. Slowly move the tester handle to measure the pressure at which
fuel begins jetting out from the nozzle.
3. If the measurement is not within the factory specifications,
replace the adjusting washer (1) in the nozzle holder to adjust it.
Fuel injection pressure Factory specification
(Reference)
• Pressure variation with 0.01 mm (0.0004 in.) difference of
adjusting washer thickness:
Approx. 235 kPa (2.4 kgf/cm
(1) Adjusting Washer
G-39
GENERAL
0.145 to 0.185 mm
0.0057 to 0.0073 in.
A: Valve Clearance
9Y1210003GEG0042US0
13.7 to 14.7 MPa
140 to 150 kgf/cm
1991 to 2134 psi
2
, 34 psi)
9Y1210003GEG0043US0
KiSC issued 05, 2012 A
2