SCHUNK WBL 85 Balfour Beatty, Maintenance And Operating Manual

Page: 26 / 56

WBL 85-15kV
Adjustment Work
Single Arm Pantograph WBL 85 Balfour Beatty
Page 26
If fine tuning is required, proceed as follows:
❑
Lower pantograph, bellow has to be completely without pressure.
❑
Loosen lock nuts (3) on both drive wire ropes.
❑
Adjust length of wire ropes by means of hexagonal nuts (4) until parallelism
between the connection plate (1) and base shaft (2) is accomplished.
❑
Verification through raising and lowering of pantograph.
❑
Secure again with lock nuts.
❑
Final inspection of the fine tuning through raising and lowering of the
pantograph.
10.3 Adjusting the Bellow Drive
Check: Lift and lower the pantograph. Parallelism of the connection plate (1)
to the base shaft (2) of the lower frame has to be assured during the
raising and lowering procedures.
Connection Plate (1)
Base Shaft (2)
Lock Nut (3)
Hexagonal Nut (4)
Hexagonal Nut (4)