W&H Perfecta 900 Instructions For Use Manual page 13

5. Description of knee control unit
Fitting for blow out function
Coolant regulator
Power socket
Fuse holder with 2 fuses
Power switch ON / OFF (I / 0)
Coolant supply (control unit with
external coolant supplying)
Production year
Connecting socket for
motor handpiece
M
LA-9
S
LA-66 (optional) M
Connecting socket for foot-
operated starter (optional)
Connecting socket for
operating controls
Air supply
Operating panel for speed
regulation and motor start
13