Preliminary Adjustments I-2 / I-3 Valve
12 ©Vertical Express
Up and Down Inspection Speed Adjustment
1. Turn the up slowdown adjustment screw OUT 10 turns to ensure that the car does not
initially start up. See Figure 5.
2. Place the car on Inspection Operation, and start the car up.
3. Slowly turn the up slowdown adjustment screw IN until the car moves at 10 to 12 FPM.
4. Check the up leveling speed.
5. Turn the down stop adjustment screw OUT 10 turns to ensure that the car does not ini-
tially start down.
6. Place the car on Inspection Operation, and start the car down.
7. Slowly turn the down stop adjustment screw IN until the car runs down at 15 to 20 FPM.
8. Turn the lowering and leveling speed adjustment screw in less than one-quarter turn
increments, pausing and observing between each change, until the leveling speed is
10 to 12 FPM.
If the adjustment screw is turned more than
one-quarter
turn, the car locks in the down
direction. To unlock, run the car up on Inspection Operation while an assistant in the
machine room turns the lowering and leveling speed adjustment screw OUT a small amount.
9. Tighten the locknut.
If the car does not stop, turn the down stop adjustment screw OUT until the car stops.
10. Check the down leveling speed.
Figure 5 - Valve Adjustments
Low Pressure
Adjustment
Up Leveling
Adjustment
Up Start
Adjustment
Up Stop Adjustment
Up Slowdown Adjustment
Down Start
Adjustment
Down Stop
Adjustment
Lowering & Leveling
Speed Adjustment
Down Slowdown
Adjustment
To Next Page
Loading...