43
Contents
Previous
Page
First
Page
Next
Page
Previous
View
19.10 Apply white bearing grease to the threads of clamp screw (11) and screw it into the lug on the RH
side of the platform to clamp the platform slide.
19.11 Degrease grub screw (13), apply Loctite 222E to the threads and install in knob (12). Fit knob
(12) on the hexagonal part of clamp screw (11) and tighten grub screw (13) to secure it. Set the knob
(12) on the hexagon so that the platform slide is clamped when the arm points vertically downwards
and is free when the knob is turned counter-clockwise to the stop.
Balance mechanism guide pin
20 Install the balance unit guide pin as follows (Fig 6.2):
20.1 Push the end of a 2.5mm hexagon wrench into the hole in the flange of adjustment slide sleeve
(21), accessible through the RH side of mechanism housing (16), so that it bears against the side of
adjustment slide (38).
20.2 While holding the hexagon wrench against the balance slide, turn balance knob (24) clockwise
through about two turns. The wrench should drop into the slot in the balance slide. If it does not drop
into the slot, tilt the platform to and fro to align the balance mechanism.
20.3 Lubricate needle roller (20) with white bearing grease and install it in the hole in the flange of
balance slide adjustment sleeve (21) in place of the hexagon wrench.
20.4 Degrease the threaded hole in mechanism housing (15) and grub screw (19).
20.5 Apply Loctite 222E to the threads of grubscrew (19) and install it in the RH side of mechanism
housing (16) to retain needle roller (20). Tighten grub screw (19) until it reaches a stop then back off
half a turn.
20.6 Check that the outer end of grub screw (19) is below the surface of mechanism housing (16) to
confirm that the balance mechanism guide pin is correctly engaged in the slot in the balance slide. If it
stands above the surface, remove it and repeat Para 20.2 to Para 20.5, but holding the hexagon
wrench against the end of needle roller (20).
20.7 Ensure that balance adjustment knob can be turned in both directions without undue resistance.
Allow Loctite to cure.
20.8 Degrease the seatings for platform graphic (40) and balance graphic (28) and install new
graphics.
20.9 Retouch the end of grub screw (21) with Nimbus Grey paint.
Final adjustment
21 After completion of assembly, prepare the head for final setting of the drag knobs as follows:
21.1 Set both drag control knobs to 9 and leave the head to stand for a minimum of 12 hours.
21.2 Check and, if necessary, re-adjust the drag control knobs (See “Resetting the drag knobs” on
page 22).
WARNING!: It is essential for the correct operation of the balance mechanism that the
balance mechanism guide pin engages in the slot in the balance slide.
To Next Page
Loading...