11-38
140-3 SERIES
STRUCTURE AND FUNCTION, MAINTENANCE STANDARD TIMING GEAR
TIMING GEAR
★ Details may differ according to the machine
model.
1.
Water pump drive gear (No. of teeth: 23)
A.
Timing mark
2.
Sub idler gear (No. of teeth: 42) (between crankshaft gear and idler gear)
3.
Idler gear, large (No. of teeth: 60)
B.
Timing mark
4.
Idler gear, small (No. of teeth: 40) (between crankshaft gear and fuel supply
5.
Cam gear (No. of teeth: 48) pump drive gear)
6.
Air compressor drive gear (No. of teeth: 24)
C.
Timing mark
7.
Fuel supply pump drive gear (No. of teeth: 48) (between crankshaft gear and cam gear)
8.
PTO gear (opt) (No. of teeth: 22)
9.
Crankshaft gear (No. of teeth: 36)
10.
Oil pump drive gear (No. of teeth: 20)
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