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23.10 Install the tilt brake push rod (23) between the cup on the tilt brake link arm (19) and the cup on
the tilt brake lever (18).
23.11 Position the pan brake rocker arm (7) in the support cap pivot (1). Apply Loctite 222E to the
threaded stud of the spring assembly (8) and pass it through the rocker arm and screw it into the pan
brake fork end (6).
NOTE: Final adjustment of the pan brake spring assembly is carried out after assembly of the
head.
23.12 Check moving parts for freedom and fit. Add or remove shims (15) as required.
24
Referring to
Fig
6.3, install two bushes (28) in LH support cap (27).
25
Referring to
Fig
5.1, calculate the shims required between the upper and lower drive arms and the two
support caps as follows:
25.1 Measure the width across the support cap bearing faces on the base - dimension G.
25.2 Measure the distance between the bearing faces of the lower drive arm - dimension H.
25.3 Measure the distance between the bearing faces of the upper drive arm - dimension J.
25.4 Subtract G from H, divide by 2 and, using shims (item 43,
this figure for the lower drive arm, allowing not more than 0.002 in. clearance.
25.5 Subtract G from J, divide by 2 and, using shims (item 43,
this figure for the upper drive arm, allowing not more than 0.002 in. clearance.
26
Position LH and RH support caps on the balance mechanism, ensuring correct shims are installed on
drive arm pins
Tilt brake
27
To assemble the tilt brake components, proceed as follows
27.1 If the push rod/spring fork assembly was dismantled, assemble as follows:
27.1.1
On the pin (18) arrange 19 disc springs (17) as shown in
27.1.2
Open the fork (14) sufficiently to install pin and springs.
27.1.3
Secure pin with washer (16) and screw (15), using Loctite 222E.
27.1.4
Install grubscrew (19), using Loctite 222E and adjust assembly to dimension shown in
Fig 6.10
27.2 Adhere the tilt brake reaction lining (45) to the mechanism housing (1) using Loctite 380.
27.3 If removed, install two Spirol pins (12) and two grubscrews (42) in tilt back plate (41). The ends of
grubscrews (42) should be flush with the bottom of the recess in the tilt back plate (41).
27.4 Position the tilt brake bell crank (8) (attached to RH support cap) on the mechanism housing (1).
First
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Page
Page
Fig
6.6), assemble two shim packs to
Fig
6.6), assemble two shim packs to
(Fig
6.10):
Fig
6.10.
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