33
4.6
Remove the tilt encoder drive gear (30) from the tilt encoder housing (27). If required, remove the
bearings (4) and (5) from the gear.
4.7
Remove two screws (6) and pull the encoder and tilt anti-backlash pinion (26) out of the tilt
encoder housing (27).
4.8
Slacken two grubscrews (8) on the tilt encoder (7) and remove the tilt anti-backlash pinion (26).
4.9
Note the position and remove two screws (19) securing the cover plate (16) to the housing (25). If
required, remove two dowel pins (18).
4.10 Slacken two grubscrews (8) on the pan encoder (7) and pull out the tilt anti-backlash pinion (12).
4.11 Pull the idler gear (13) and spindle (14) out of the housing (25). If required, remove the circlip (15)
from the spindle (14).
4.12 Remove two screws (11) securing the pan encoder (7) in the housing (25).
4.13 Remove six screws (1) securing the clamp ring (2) on the housing (25).
4.14 Press the base/gear assembly (23) out of the bearing (24).
4.15 If required, remove the bearing (24) from the housing (25) by removing three screw (21) and
washers (22) and pressing the bearing out of the housing.
4.16 If required, remove clips (29) from the housing (25) and drive arm (31). The clips are retained
using Loctite 415.
Mechanism housing cover/right-hand side plate
5
To remove the mechanism housing cover and right-hand side plate:
5.1
, remove the plug (9) from the pan drag knob assembly (6). Remove screw (8)
and washer (9) and pull the pan drag knob assembly off the shaft (5). Retain the two balls (9) and
springs (10).
5.2
, peel off the self-adhesive balance label (24). Turn the balance knob (22) fully
counter-clockwise.
5.3
, tilt the platform for access and remove two screws (26) securing the
mechanism housing cover (2) to the mechanism housing assembly (21).
5.4
, turn the balance knob (22) fully clockwise. Slacken screw (26) securing
balance adjustment stop (7) to balance knob assembly (22). Turn the head upside-down and push
down on screw (26) to disengage the balance adjustment stop.
5.5
Remove three screws (25) and screw (23) securing the balance knob assembly (22) to the
mechanism housing assembly (27). Turn the balance knob clockwise to disengage the balance knob
assembly (22) from the adjustment bracket assembly (8) and the potentiometer nut (28). Remove the
balance knob and adjustment stop assembly from the mechanism housing.
5.6
, remove tilt arm encoder drive screw (7) and screw (11) securing right-hand
side plate (6) to platform (16).
5.7
, remove two screws (1) securing the mechanism housing cover (2) to the
mechanism housing assembly (21).