Fostex G24S Service Manual page 13

4.2.4 Tension Roller Height Adjustment
If the tape travel is unsatisfactory due to a misaligned tension roller, its height must be cor ­
rected.
Load a tape and put the G24S/G16S in F. FWD and also in RWD modes.
If the tape moves up and down on the Guide roller (take up side) and the Footage roller
(supply side) as shown in the Fig. 4.5 when repeated F. FWD and RWD modes, in other words,
the position of tape path on the Rollers at F. FWD and RWD modes becomes different, the height
of Tension arm will have to be adjusted by loosening the screw (T) shown in the Fig. 4.5.
After the Tension arm height adjustment is completed, put the G24S/G16S in PLAY mode
and confirm if the tape is travelling in the middle of the Reel.