The AKAI 1720 model reel to reel tape recorder described in this Manual is quite an old unit - circa late 1960's. As a consequence, the description of the mechanical details - and adjustments thereof - is quite critical. The manual does this quite well. The schematics are also well presented and have detailed PCB overlays. Probably the only negative is that some half-tone detail has been lost from the original manual as it has been scanned in simple B&W.
Text excerpt from page 18 (click to view)
CX-1011
- Chassis 4
N
12
Grease name <GS-PG641>
Each the upper side of reel shaft (middle-step).
Slant-part in left figure.
3 The upper side of worm gear shaft. The side and bottom of worm gear shaft. Slant-part in left figure.
4 The upper side of pre mode gear shaft. The side and bottom of pre mode gear shaft. Slant-part in left figure.