What to do if your lift control valve is stuck?
What to do if your lift control valve is stuck?
Control valve is stuck & can sometimes be released by manually moving the pump control valve lever back & forth. If it’s really your lucky day we have on occasion ‘unstuck the valve’ by picking up & dropping the lift arms repeatedly when the lift control levers are in the down position. Failing this remove the pump, control valve, clean or replace.
Why is there no ventilation in a lift shaft?
Some of the reasons not to provide ventilation to a lift shaft are: A vent allows the escape of heat from the building, reduce the buildings efficiency and increasing building heating costs
What are the regulations for a lift shaft?
Essentially the regulations require the lift manufacturer to provide the building designer with details of the heat output from the lift equipment, such that the requirements for ventilation can be assessed by the building designer in accordance with the overall building design.
Where is the 3 way control lever located?
Center position allows operation of the 3-point arms, & the rear position will feed power to a 4-way control valve for two-way (push-pull) operation of double acting cylinder. Has 2 hydraulic hoses coming out of it.
How do you align upper shift lever and lower unit?
That’ll help it slip in. No, the LU should shift into each gear as you turn the shift shaft. If you are in fwd, turn the shift shaft counter clockwise, should feel some pressure then the pressure will let up this should be nuetral, then one more turn CC to reverse.
Why does my 9N / 2N lift not work?
There is a more rare condition that will really put a monkey wrench into the operation of the lift on the 9N/2N AND OR 8N. This is when the retaining spring that is an integral part of the exhaust control valve breaks or becomes too weak to actuate the exhaust valve when it is moved by the control linkage.
Where is the connector on a shift lever?
To move the connector you will find the shaft outside the LU behind the reverse lock shaft. Move over the shift shaft and tighten the bolts until the shaft is connected.
What does it mean when the lift won’t come down?
When the lift won’t come down it is a sure sign that you have dirty oil in the hydraulic reservoir or that the return spring which is under the intake valve is weak and needs to be replaced or stretched out again to increase it’s tension. EXHAUST CONTROL VALVE SPRING DAMAGED OR MISSING
