MAHA DUO CM Series, Operating Instructions Manual

Page: 32 / 45

32
BA082901-en
5.10.7 Manual Lowering with 2 × 5.5 kW Power Unit in the Middle Platform
Disengage Latch
If the latch can be disengaged, continue to point “Perform Manual Lowering”.
1 Use hand pump.
Raise the sides one after the other – the seat valve ( +C-M5.A / +C-M5.B ) on the
other side must remain active in each case.
a) Disable seat valve +C-M5.A or +C-M5.B .
Unscrew and remove the protective cap from the valve and unscrew the knurled
screw (anticlockwise).
b) Disengage latches.
Use the hand pump until latch is fully disengaged. Warning! Be aware of offset!
c) Enable seat valves +C-M5.A or +C-M5.B /bring them to an operating state.
Re-screw knurled screw (clockwise), attach protective cap.
2 Repeat actions for other side.
Perform Manual Lowering
1 Disable seat valves +A-M1.A and +B-M1.B (main cylinder).
Unscrew and remove the protective cap from the valve and unscrew the knurled
screw (anticlockwise).
2 Place sliding shoe underneath latches on side +A and +B (main cylinder).
3 Leave hazard zone.
4 Lower the lift.
a) Open stopcock (manual lowering control unit).
b) Lowering process:
Pressing the buttons on the manual lowering control unit causes the bypass stop
valves ( +C-M4.A / +C-M4.B ) to be pneumatically actuated – lift lowers!
Warning : Be aware of offset throughout entire lowering process!
c) Close stopcock (manual lowering control unit).
5 Remove vehicle.
6 Determine cause of fault and rectify it.
7 Raise the lift without any load.
Warning! Lift may lower a few millimetres when the “UP” button is pressed!
8 Remove sliding shoes (main cylinder).
9 Enable seat valves +A-M1.A and +A-M1.B /bring them to an operating state.
Re-screw knurled screw (clockwise), attach protective cap.