Servicing Points - Takeuchi TB 175 Handbuch

4. Disassembly, inspection and reassembly of engines

4.3.4 Servicing points

Point1
[Disassemble]
• Remove the crankshaft pulley using a gear puller
after removing the crankshaft pulley set bolt. When
removing the pulley using the gear puller, use a pad
and carefully operate so as not to damage the thread.
Set the gear puller securely to prevent the pulley from
being damaged.
[Reassemble]
• Apply lithium grease to the oil seal lips. For the oil
seal with double lips dust seal, further slightly apply
engine oil on the lips so as not to damage them.
• Clean by wiping off any oil on both taper surfaces
using detergent.
• Be sure to use the crankshaft pulley installing tool so
as not to damage the oil seal lips. (See 4.3(6) Oil seal
replacement)
• When installing the crankshaft pulley, apply lube oil to
the set bolt to tighten and carefully assemble so as
not to damage the oil seal.
Model
3TNV82A to TNV88
4TNV94L/98/106(T)
Point2
[Reassemble]
• When installing the gear case, do not forget to install
the two reinforcing bolts at the center.
• Measure the backlash of each gear.
3TNV82A to 88
Crankshaft gear,
Camshaft gear,
Fuel injection pump gear,
Idle gear, PTO gear,
4TNV94L-106(T)
Crankshaft gear,
Camshaft gear,
Fuel injection pump gear,
Idle gear, PTO gear,
Balancer gear
(only 4TNV106(T))
Lubricating oil pump gear
• Apply sealant and install the gear case by correctly
positioning the two dowel pins.
(R.1)
N•m (kgf•m)
Tightening torque
112.7 to 122.7 (11.5 to 12.5)
107.9 to 127.5 (11.0 to 3.0)
Standard Limit
0.07 to 0.15 0.17
Standard Limit
0.08 to 0.14 0.16
0.12 to 0.18 0.20
0.09 to 0.15 0.17
B
Idle gear
mm
Lubricating oil
pump gear
Gear train (4TNV94L to 106)
Fuel injection pump
drive gear
B
Idle gear
Gear train (3TNV82A to 4TNV88)
84
Fuel injection pump
drive gear
Camshaft gear
B
C
C
A
A
PTO gear
Crankshaft gear
Direction of rotation
Camshaft gear
B
C
C
A
PTO gear
Crankshaft gear
Direction of rotation