Adjustment Of Valves - MP sava3 Technical Manual

2.1.4. Adjustment of Valves

NOTE: All the blocks are adjusted prior to delivery; this information must only be used if a re-adjustment of a valve block is required.
Adjustment screws with seal-locks:
- Loosen the nut before adjusting
- Tighten the nut after adjusting
NOTE: If the lift does not go up, check the pressure relief valve or the
maximum pressure switch are not operating; see points 1 and 2 of section 4.5
1. Upwards acceleration adjustment. Screw 2
1. Load the lift car with half the rated load.
2. Tightening screw 1 makes starting gentler (- accelerated). If screw 1 is tightened fully, the lift will not start-up.
3. Loosening screw 1 makes the lift starts up more quickly and therefore abrupter (+ accelerated).
2. Down speed adjustment. Screw 5
1. Load the lift car with half the rated load. Time how long it takes the lift car to travel down.
2. If the speed is higher than required, loosen screw 5 until desired speed is obtained (- speed).
3. If the speed is lower than required, tighten screw 5 so that down speed increases (+ speed).
3. Upwards and downwards deceleration adjustment. Screw 3
1. Load the lift car with half the rated load.
2. Tightening screw 3 makes the change smoother (- accelerated); it also reduces the time at the levelling speed for a distance of the change signal.
3. Loosening screw 3 makes the change more abrupt (+ accelerated); it also increases the time at the levelling speed for a distance of the change signal.
4. Levelling speed adjustment. Screw 4
1. Load the lift car with half the rated load.
2. Tightening screw 4 reduces the speed, the lift stops smoothly (- speed). 'If the speed is too low, it could jerk'.
3. Loosening screw 4 increases the speed; the lift stops abruptly (+ speeds).
4. Time at levelling speed depends on the position of contacts in the lift shaft and the adjustment of screw 3.
5. Soft-Stop adjustment. Screw 8. Available in 1 ½" Hydraulic Equipment
1. Load the lift car with half the rated load.
2. Tightening Soft-Stop screw, the lift stops smoothly.
3. Loosening Soft-Stop screw, the lift stops abruptly.
V700 - 11/2017
NOTE: The
information
beside every
screw, the quantity increase
or decrease direction of the
parameter that controls this
adjuster and its name as well.
11/40
MP sava3 Hidraulic Power Unit 1 ¼" 1 ½"
power unit
plate shows,
Hand pump pressure
adjustment
relief valve
MTMECMPsava3_700_EN