Forward Delay Valve
- Connect external vacuum source to port on Black (or Red) side of delay valve. Connect vacuum gauge to port on colored side of valve.
- With elapsed time device in view and a constant 10 in. Hg vacuum applied, note time required for gauge pointer to move from 0-8 in. Hg.
- If valve fails to meet time limits, replace valve. If valve meets specifications, install so that Black (or Red) side is toward vacuum source.
FORWARD DELAY VALVE TIME LIMITS
| Valve Color |
Min. Time |
Max Time |
| Black/Purple |
3.2 |
4.8 |
| Black/Gray |
8 |
12 |
| Black/Brown |
16 |
24 |
| Black/Orange |
1.5 |
2.5 |
| Black/White |
50 |
77 |
| Black/Yellow |
80 |
120 |
| Black/Green |
160 |
240 |