Hitachi DV-PF2U Service Manual page 41

Alignment 3
Cam Gear (A), Rack Assembly
Install the Rack Assembly so that the first tooth on
the gear of the Rack Assembly meets the first
groove on the Cam Gear (A) as shown in Fig. AL4.
Top View Cam Gear (A)
First groove
on the Cam Gear (A)
Alignment 3
First tooth
Gear on Rack Assembly
Fig. AL4
2-3-2