Blain Hydraulics EV 100 Troubleshooting

Problem Possible cause
Test: Turn adjustment 5 all the way in. If the elevator now starts upwards the problem is at solenoid A.
Solenoid A: not energised or voltage too low.
Solenoid A: tube not screwed down tight.
Solenoid A: Dirt or damage between needle AN and seat AS.
Adjustment 2 not far enough open.
No Up-Start
Adjustment 1 too far back (open). Not enough pilot pressure.
(Elevator
Pressure relief valve S is set too low.
remains
at fl oor)
Adjustment 8 turned in too far (car sits on the buffer).
Bypass fl ow guide U is too large.
Pump running in the wrong direction.
The pump connection fl ange is leaking excessively.
The pump is undersize, worn or crack in the housing.
Test: If by turning adjustment 1 with the pump running the pressure does not rise above 5 bar, even with a smaller bypass valve
inserted, the problem should be sought at the pump.
Test: Turn adjustment 3 all the way in. If the elevator now travels upwards at full speed the problem is at solenoid B.
Solenoid B not energised or voltage too low.
Up-Start, but
Solenoid B tube not screwed down tight.
no Full Speed
Solenoid B: Dirt or damage between needle AN and seat AS.
The pump connection fl ange is leaking excessively.
The pump is undersize or worn.
Adjustment 1 turned in too far.
Adjustment 2 turned out too far.
Bypass fl ow guide U too small (slots too narrow).
Up-Start
too hard O-Ring UO on Bypass Valve U is leaking.
Star to Delta motor switch period is too long.
Excessive friction on the guide rails or in the cylinder head.
Solenoid B does not de-energise.
No deceleration
into levelling
Adjustment 3 turned in too far.
speed
O-Ring UO on Bypass Valve U is leaking.
Adjustment 4 too far screwed out.
Levelling too fast
Deceleration Solenoid A is de-energised too late.
into levelling
Adjustment 5 turned in too far.
speed but
Adjustment 1 turned in too far.
overtravel of
fl oor level
Up levelling speed too high.
Bypass-
Restriction on the return line.
pressure
Bypass fl ow guide U too small (slots too narrow).
not adjustable
Solenoid A and B reversed.
Elevator stops
Up levelling speed too slow.
before reaching
the fl oor
Middle O-Ring FO of fl ange 4F is leaking.
(no levelling)
Relief valve is set too low.
Valves are already adjusted and tested. Check electrical operation before changing valve settings. Test that the correct solenoid is energised, by removing nut
and raising solenoid slightly to feel pull.
A
For checking the operation of the solenoids, remove the top nuts. By lifting the coils a few millimeters, the magnetic pull of the coil can be felt. For testing, the
operation of the elevator car can also be controlled by lifting and replacing the coil.
If the coil gets too hot, the coil has to be mounted onto the solenoid and the following adjustments have to be carried out on normal travels from fl oor to fl oor.
Standard settings: Adjustments 1 & 4 approx. level with fl ange faces. Up to two turns in either direction may then be necessary. Adjustments 2, 3 & 5 all the way in
(clockwise) then for EV ¾": all adjustments 1.5 turns out (c-clockwise), for EV 1 ½ " – 2 ½": adjustments 3 & 5 two and half turns out (c-clockwise), adjustment 2 two
turns out. Small fi nal adjustments may be necessary.
EV 100 Trouble Shooting (2013)
UP Travel
Recommended
See
A
Tighten Solenoid A tube.
Clean or change needle and seat.
Turn out adjustment 2.
Turn in adjustment 1 with the pump running.
Set relief valve higher. (turn in)
Turn out adjustment 8.
Insert smaller bypass fl ow guide (see fl ow guide charts
at EV catalogue).
Check motor direction and install the pump correctly.
Seal the pump connection.
Select bigger pump or replace pump.
See
A
Tighten Solenoid B tube.
Clean or change needle and seat.
Seal the pump connection.
Select bigger pump or replace pump.
Turn out adjustment 1.
Turn in adjustment 2.
Change to fl ow guide with wider slots.
Change O-Ring
0.2-0.3 sec. is suffi cient.
Can not be eliminated thru valve adjustment.
Lift coil to check magnetic pull. See
Slow down switch possibly set to high (late).
Turn out adjustment 3. Turn in adjustment 2.
Change O-Ring  see EV Spare Parts List.
Turn in adjustment 4 to about 0.05 m/s levelling speed.
Lift coil to check pull. See
Switch position in the shaft.
Turn out adjustment 5.
Turn out adjustment 1.
Turn in adjustment 4 to about 0.05 m/s levelling speed.
Remove restriction; enlarge return line.
Change to fl ow guide with wider slots.
Swap solenoid A and B. See
Turn out adjustment 4.
Change O-Ring  see EV Spare Parts List.
Set relief valve higher.
below.
below.

see EV Spare Parts List.
below.
A
below.
A
below.
A