Vinten Vision 11 Maintenance Manual page 31

Contents
11 To dismantle the pan drag unit assembly:
11.1 Referring to
11.2 lift the calliper (18) out off the pan drag unit, taking care to retain the two inner and one outer
brake pads (19, 20).
11.3 Referring to
the pan drag knob assembly (3).
11.4 Unscrew the pan drag knob assembly (3) and remove the steel ball (5), the spring (6), two thrust
washers (7) and the needle thrust bearing (8). Pull the 'O' ring (26) off the shaft of the tilt drag knob
assembly. Discard the 'O' ring (26).
11.5 Remove two plugs (23) from the face of the pan drag housing (9).
11.6 Remove the screw (25) and clamp washer (24) from the end of the pan shaft.
NOTE: The pan drag unit assembly contains 16 cc of Vinten Fluid No. 3. Be prepared to catch any
fluid that may leak from the assembly.
11.7 Tap the exposed end of the pan shaft to separate the spherical base (14) from the pan drag
mechanism.
11.8 Remove the drag actuator block (13) and two drag wedges (12) from inside the spherical base
(14).Remove screw (16) securing the drag shoe assembly (17) to the pan drag housing (9).
11.9 Lift off the pan seal plate (10) and remove and discard the 'O' ring (18) and the omniseal (20).
11.10 Remove two thrust washers (10) and needle thrust bearing (11).
11.11 Wipe all traces of Vinten Fluid No. 3 from components.
11.12 Remove and discard 'O' ring (15) from the shaft in the spherical base (14). If required, remove
bearing (22) from the pan drag housing (9).
Electrical system
12 To remove the remaining components of the electrical system
NOTE: The electrical wiring is secured using wiring retainers (13). Note the position for
reassembly.
12.1 Pull the push-button cap (7) off the switch on the PCB mounting (2C).
12.2 Remove three screws (4) securing PCB mounting (2D) to mechanism housing (11). Carefully pull
out the PCB mounting and PCB (2C) to the extent allowed by the wiring.
12.3 The level bubble LED (2F) is secured to the underside of the level bubble using Silcoset.
Carefully cut away the LED.
12.4 The LED housing (5) is secured to the PCB mounting (2D) using Loctite 405. Remove if required.
Fig 6.2, unscrew and remove the brake shaft (28).
Fig 6.3, slacken the grub screw (4) and pull the pan drag indicator assembly (2) off
First Previous
Page Page
(Fig 6.6):
Next Previous
Page View
31