C
−
LRV lift control valve
Installation and commissioning
300−I−9010212−E−10/08.08
4.3.12
The pipe−rupture valve test
A precondition for testing the pipe−rupture valve is that the lift must be
working properly, without any faults.
Danger
Uncontrolled descent (free fall)
People may suffer injury and materials may be damaged.
Before testing the pipe−rupture valve, make sure that there are no
people or materials in the lift shaft.
Attention
Uncontrolled descent (free fall)
Can cause damage to the support frame and car.
The elevator car must come to rest within 3 ... 5 metres.
If it does not, immediately switch off the main switch for the lift control
system (and repeat the test).
Preparing to test the pipe rupture valve
1.
Load the car to half of its rated capacity
2.
Drive the car to the top floor
Important
: do not carry out the test if the car is too close to the lowest
floor.
3.
Prepare the handterminal or an computer with WinDelta32
