Vacuum Diaphragm Rod
- If vacuum diaphragm (modulator) is replaced, vacuum diaphragm rod length (depth) must be checked for NEW rod length. Proper length rod should be installed after measurement.
- Unscrew vacuum diaphragm from case. Remove diaphragm, diaphragm rod and rubber "O" ring. Measure dimension "N" using Adjusting Gauge (49-G032-355). See Fig 1 . Select proper length rod. See VACUUM DIAPHRAGM ROD SELECTION table.
VACUUM DIAPHRAGM ROD SELECTION
| Dimension "N" In. (mm) | Rod Length In. (mm) |
|---|---|
| 1.0099 (25.650) Or Less | 1.14 (29.0) |
| 1.0099-1.0197 (25.650-25.900) | 1.16 (29.5) |
| 1.0197-1.0394 (25.900-26.400) | 1.17 (29.7) |
| 1.0394-1.0492 (26.400-26.650) | 1.18 (30.0) |
| 1.0492-1.0689 (26.650-27.150) | 1.20 (30.5) |
| 1.0689 (27.150) Or More | 1.22 (31.0) |