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17.20 Install the shim pack on tilt drag shaft (26) and align the holes in the shims with the holes in the
spacer and the constant drag assembly.
17.21 Using a degreasing fluid which does not contain an oil-based corrosion inhibitor, thoroughly
clean the face of the constant drag assembly (8), the faces of the friction rings and six threaded holes in
the labyrinth assembly (7).
17.22 Install the labyrinth assembly (7) on the tilt drag shaft (26). Turn the labyrinth assembly to align
the holes in the centre part with the holes in shim pack and push it into position.
17.23 Remove the temporary pin.
17.24 Pass two screws (13) through the tilt drag shaft (26) to secure the labyrinth assembly (7). Do not
tighten screws at this stage.
17.25 Install two Spirol pins (25) in the exposed face of labyrinth assembly (7) and drive them in until
the ends are about 2.5 mm (3/32 in.) below the face.
17.26 Install complete assembly onto tilt drag actuator shaft (2) and lower it into position on tilt drag
housing (1). Rotate the top plate relative to the tilt drag housing to align holes for screws and Spirol pin,
noting that there is only one position in which all the holes are aligned.
17.27 Secure constant drag assembly to tilt drag housing with six screws (9). Do not tighten screws at
this stage. Install one Spirol pin (6) in tilt drag unit top plate and drive in until the end is 8 mm (5/16 in.)
below the face of tilt drag unit top plate. Fully tighten six screws (13).
17.28 Support tilt drag actuator shaft (2) under cross hole near threaded end and install a Spirol pin
(31) in the hole. Drive the pin into the actuator shaft until one end is flush to the surface of shaft.
17.29 Degrease four screws (15).
17.30 Turn the tilt drag shaft (26) against the resistance of the drag mechanism until the pattern of
holes in the end of the shaft is symmetrical relative to the top face of the tilt drag housing (1), with the
two 4.0 mm diameter holes for the Spirol pins vertical and the more widely spaced pair of 4.5mm
diameter holes nearer to the top face of the tilt housing. Turn the tilt drag shaft 58 degrees counter-
clockwise from this position. This orientation is achieved when the heads of the two M3 cap screws in
the tilt drag shaft align with an imaginary line extended from the centre of the tilt drag shaft to the centre
of the pan bar mounting on the tilt drag housing.
17.31 Turn tilt drag actuator shaft (2) so that Spirol pin (31) points about 90 degrees clockwise from
vertically upwards relative to the top face of tilt drag housing (1). This orientation is achieved when the
projecting part of the Spirol pin aligns with the 4.5mm dia hole in the tilt drag shaft.
17.32 Apply Rocol M240G grease to inside face pf boss of outrigger (14)
17.33 Locate outrigger (14) on the tilt drag actuator shaft, oriented about 112 degrees clockwise from
its normal position relative to tilt drag housing (1). This orientation is achieved when an imaginary line
extended from the centre boss of the outrigger through the tilt brake boss aligns with the centre of the
pan bar mounting on the tilt drag housing.
17.34 Slide the outrigger onto the shaft until Spirol pin (31) enters the slot in the boss of the outrigger
and the outrigger is felt to seat on the spigot of the tilt drag shaft (26). If resistance is felt, do not apply
NOTE: While tightening screws (9) to secure the assembly, rotate shaft (2) to ensure thrust
bearings and washers are not trapped.
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