Vinten 3320, Руководство по обслуживанию

Страница: 34 / 53

34
Contents
Previous
Page
First
Page
Next
Page
Previous
View
12.2 If roller housings have been removed from elevation tube ensure that grub screws ( Fig 6.3 item
10) are removed.
12.3 Ensure top clamp ( Fig 6.3 item 26) is in the disengaged position and lay the telescopic column
horizontally with the top clamp downwards.
12.4 Install top clamp pad ( Fig 6.4 item 1).
12.5 Insert the tank tube into the elevation tube. Ensure that the orientation of the tank tube relative to
the elevation tube is as noted during disassembly. If the tank tube is incorrectly oriented the pressure
relief valve will not enter the recess provided for it in the elevation tube end.
12.6 Draw out piston rod ( Fig 6.2 item 36) from end of elevation tube sufficiently to gain access to the
cross drilling for Spirol pin (8).
12.7 Thread on washer (7) and drive in Spirol pin (8).
Elevation tube
13 To assemble the elevation tube ( Fig 6.3 ):
13.1 Fit catch (4) to elevation tube (14) and secure with two screws (5). Apply Loctite 290 to inner end
of each screw.
13.2 Assemble spacer (13), bearings (14) and shims (6) onto spindle (11). Fit equal numbers of shims
to each side of rollers to eliminate side play when offered up to roller housing.
13.3 Fit each bearing assembly into roller housing (7) and secure to elevation tube with four screws
(9) and new washers (8). Tighten screws (9) to torque of 1.36Nm (12lbf in.).
13.4 Do not fit grub screws (10) at this stage.
13.5 Refit tank tube clamp assembly (1) to the elevation tube (44), by pivoting the free end about the
retaining grub screw (25) and tap in Spirol pin (3) to secure.
14 To install the elevation tube ( Fig 6.4 ):
14.1 Assemble the outer tube ( Para 15 )
14.2 Lay the outer tube on a horizontal surface with the bottom clamp spindle downwards.
14.3 Assemble two shims (2) into clamp pad (1) and fit clamp pad into top housing
14.4 Install elevation tube ( Fig 6.3 ) into outer tube and align groove with position for guide pin (8).
14.5 Install guide pin (8) and grub screw (9), securing grub screw with Loctite 222E.
14.6 Adjust grub screw so that elevation tube is free to move in outer tube with minimum rotational
freedom.
14.7 Screw in clamp knob spindle (3) finger tight. Fit clamp knob as shown in Fig 4.1 ( Section 4 ).
Secure clamp knob with screw (6) and washer (4). Fit plug (7) into clamp knob.
14.8 Tighten bottom clamp and engage safety catch.
14.9 Apply protective tape to face of tank tube top plate.