Lubricating Oil System (Trochoid Pump) - Takeuchi TB 175 Handbuch

12.3 Lubricating oil system (Trochoid pump)

(1) Outside clearance of outer rotor
Model
3TNV82A to 88
4TNV94L/98
4TNV106(T)
(2) Side clearance of outer rotor
Model
3TNV82A to 88
4TNV94L/98
4TNV106(T)
(3) Tip clearance between outer rotor and inner rotor
Insert a gap gage between an outer rotor and an inner rotor, and measure the tip clearance.
Tip clearance
Standard
-
(4) Inside clearance of inner rotor
Item
Inside clearance
of inner rotor
Width across flat
clearance of inner rotor
(5) Rotor shaft clearance
Model
4TNV94L/ 98
4TNV106(T)
Standard
0.12 to 0.21
0.100 to 0.155
0.100 to 0.165
Standard
0.02 to 0.07
0.05 to 0.10
0.03 to 0.12
mm
Limit
0.16
Parts
Gear boss diameter
Rotor diameter
Width across flat of
Gear boss
Width across flat of
rotor
Inspection item
Gear case bearing I.D.
Rotor shaft O.D.
Rotor clearance
Gear case bearing I.D.
Rotor shaft O.D.
Rotor clearance
Limit Reference page
0.30
0.25 5.5.1.(1)
0.25
Limit Reference page
0.12
0.15 5.5.1.(1)
0.17
Standard Standard
53.05 to 53.15
0.3 to 0.5
53.45 to 53.55
49.45 to 49.75
0.2 to 0.6
49.95 to 50.05
Standard
12.980 to 13.02
12.955 to 12.975
0.035 to 0.065
13.00 to 13.02
12.955 to 12.965
0.035 to -0.065
195
12. Service Standards
mm
mm
Reference
Limit
0.6
5.5.1.(2)
0.7
Reference
Limit
page
13.05
12.945
0.105
5.5.1.(3)
13.05
12.945
0.105
mm
page
mm
(R.1)