TCM FB-8 Series, Service Manual

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⑥
Install the drive gear in the pump body, with its
splines pointed downward.
Fig. 7.37
Fig. 7.38
Fig. 7.39
CAUTION
The sketch shows the engagement of the left-rotation pump. Since the tooth profiles of
the two gears are asymmetric, install them with their larger pressure angle sides pointed
to each other. Failure to do so might damage the gear teeth.
(a) Engagement of 1st pump
Engagement surfaces
(shaded sections)
Smaller pressure
angle side
Greater pressure angle side
(driven-side engagement surface)
Greater pressure angle side
(drive-side engagement surface)
Drive
side
Driven
side
⑦
Install the drive gear in the pump body, as
shown in Figure 7.39.
7. HYDRAULIC SYSTEM