Vinten Vector 70 Maintenance Manual page 42

Contents
22.6.1 Measure the width across the upper bearing faces of the mechanism
housing - dimension C.
22.6.2 Measure the distance between the bearing faces of the upper drive arm - dimension D.
22.6.3 Subtract C from D, divide by 2 and, using shims (17), assemble two shim packs to this
figure, allowing not more than 0.002 in. clearance.
22.7 If removed, lubricate 'O' ring (21) with LM grease and install in RH side of mechanism housing
(10). Install seal insert (22).
22.8 Position the upper drive arm/horizontal track arm in the mechanism housing with the shim packs
between the inside bearing faces and one 0.005 in. shim (5) between each outside bearing face. Install
two upper arm pivot pins (20), ensuring pins are underflush with the faces of the mechanism housing.
Secure pins with grubscrews (8).
22.9 Referring to
mechanism housing (10) as follows:
22.9.1 Measure the width across the lower bearing faces of the mechanism
housing - dimension E.
22.9.2 Measure the distance between the bearing faces of the lower drive
arm - dimension F.
22.9.3 Subtract E from F, divide by 2 and, using shims (17), assemble two shim packs to this
figure, allowing not more than 0.002 in. clearance.
22.10 Position the lower drive arm in the mechanism housing with the shim packs between the inside
bearing faces and one 0.005 in. shim (17) between each outside bearing face. Install two lower arm
pivot pins (31) from the outside, ensuring bearings are not damaged and pins are underflush with the
faces of the mechanism housing.
22.11 Align the lower end of the horizontal track arm (16) in the lower drive arm (19), install a 0.005 in.
shim (17) at each side and install two horizontal track arm pivot pins (15) from the inside, ensuring pins
are underflush with the lower drive arm.
22.12 In the mechanism housing, lubricate the inside faces of bearings (11) with Easyrun 50 grease.
22.13 On the adjuster assembly (13), lubricate the outside faces of bearings with Easyrun 50 grease.
22.14 In the mechanism housing, position a shim (12) on the inside faces of bearings (11) and install
the adjuster assembly, aligning the holes in the bearings and shims.
22.15 If removed, install a bearing (6) in RH actuator (42) and LH actuator (34). Centralize the bearing
and position the slot in the bearings diametrically opposite to the slot in the actuators. Secure lightly
with screw (33).
NOTE: Actuators (42, 34) are handed. Ensure RH actuator (42), with round hole, is installed at RH
end of vertical track member (7) and LH actuator (34), with pear-shaped hole, at LH end.
22.16 Position RH actuator (42) in lower RH end of vertical track member (7), with a 0.005 in. shim (17)
on each side. Install pivot pin (31) and secure with grubscrew (8).
Fig 5.1, calculate the shims required between the lower drive arm (19) and the
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