ENGINE
L3540-II, L4240-II, L5040-II, L5240-II, L5740-II , WSM
1-S58
Correcting Valve and Valve Seat
NOTE
• Before correcting the valve and seat, check the valve stem
and the I.D. of valve guide section, and repair them if
necessary.
• After correcting the valve seat, be sure to check the valve
recessing.
(1) Correcting Valve
1. Correct the valve with a valve refacer.
(2) Correcting Valve Seat
1. Slightly correct the seat surface with a 1.0 rad (60 °) (intake
valve) or 0.79 rad (45 °) (exhaust valve) valve seat cutter.
2. Resurface the seat surface with a 0.52 rad (30 °) valve seat
cutter to intake valve seat and with a 0.26 rad (15 °) valve seat
cutter to exhaust valve seat so that the width is close to
specified valve seat width (2.12 mm, 0.0835 in.).
3. After resurfacing the seat, inspect for even valve seating, apply
a thin film of compound between the valve face and valve seat,
and fit them with valve lapping tool.
4. Check the valve seating with prussian blue. The valve seating
surface should show good contact all the way around.
9Y1211167ENS0063US0
Valve Lapping
1. Apply compound evenly to the valve lapping surface.
2. Insert the valve into the valve guide. Lap the valve onto its seat
with a valve flapper or screwdriver.
3. After lapping the valve, wash the compound away and apply oil,
then repeat valve lapping with oil.
4. Apply prussian blue to the contact surface to check the seated
rate. If it is less than 70 %, repeat valve lapping again.
IMPORTANT
• When valve lapping is performed, be sure to check the
valve recessing and adjust the valve clearance after
assembling the valve.
9Y1211167ENS0064US0
Valve face angle
Factory
specifica-
tion
IN.
1.0 rad
60 °
EX.
0.79 rad
45 °
Valve seat angle
Factory
specifica-
tion
IN.
1.0 rad
60 °
EX.
0.79 rad
45 °
(1) Valve Seat Width
(2) Identical Dimensions
(A) Check Contact
(B) Correct Seat Width
(C) Check Contact
(a) 0.26 rad (15 °) or 0.52 rad (30 °)
(b) 0.79 rad (45 °) or 1.0 rad (60 °)
(c) 0.52 rad (30 °) or 0.26 rad (15 °)
KiSC issued 02, 2015 A
Содержание WSM L3540-II
Страница 1: ...L3540 II L4240 II L5040 II L5240 II L5740 II WORKSHOP MANUAL TRACTOR KiSC issued 02 2015 A...
Страница 3: ...I INFORMATION KiSC issued 02 2015 A...
Страница 20: ...INFORMATION L3540 II L4240 II L5040 II L5240 II L5740 II WSM I 16 5 DIMENSIONS no caption KiSC issued 02 2015 A...
Страница 21: ...G GENERAL KiSC issued 02 2015 A...
Страница 97: ...1 ENGINE KiSC issued 02 2015 A...
Страница 175: ...2 CLUTCH KiSC issued 02 2015 A...
Страница 176: ...CONTENTS 1 FEATURE 2 M1 MECHANISM KiSC issued 02 2015 A...
Страница 199: ...3 TRANSMISSION KiSC issued 02 2015 A...
Страница 371: ...4 REAR AXLE KiSC issued 02 2015 A...
Страница 372: ...CONTENTS 1 STRUCTURE 4 M1 MECHANISM KiSC issued 02 2015 A...
Страница 382: ...5 BRAKES KiSC issued 02 2015 A...
Страница 383: ...CONTENTS 1 STRUCTURE 5 M1 2 OPERATION 5 M2 MECHANISM KiSC issued 02 2015 A...
Страница 398: ...6 FRONT AXLE KiSC issued 02 2015 A...
Страница 399: ...CONTENTS 1 STRUCTURE 6 M1 1 4WD TYPE 6 M1 MECHANISM KiSC issued 02 2015 A...
Страница 424: ...7 STEERING KiSC issued 02 2015 A...
Страница 442: ...8 HYDRAULIC SYSTEM KiSC issued 02 2015 A...
Страница 496: ...9 ELECTRICAL SYSTEM KiSC issued 02 2015 A...
Страница 499: ...ELECTRICAL SYSTEM L3540 II L4240 II L5040 II L5240 II L5740 II WSM 9 M2 2 GST MODEL MAIN HARNESS KiSC issued 02 2015 A...
Страница 500: ...ELECTRICAL SYSTEM L3540 II L4240 II L5040 II L5240 II L5740 II WSM 9 M3 3 HST MODEL MAIN HARNESS KiSC issued 02 2015 A...
Страница 501: ...ELECTRICAL SYSTEM L3540 II L4240 II L5040 II L5240 II L5740 II WSM 9 M4 4 CABIN HARNESS KiSC issued 02 2015 A...
Страница 611: ...10 CABIN KiSC issued 02 2015 A...