Vinten 3320 - Section 5 - Repair; Disassembly

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2 Disassembly and assembly of the various components is carried out in conjunction with figures in the
Illustrated Parts List (Section 6).
Disassembly
Column
Tank assembly
3 To remove the tank assembly:
3.1 Separate the telescopic column from the skid (Section 2).
3.2 Referring to Fig 6.4 remove the outer snap ring (17) from the base of the outer tube (11) by
prising out the exposed bevel end of the snap ring with a screwdriver until enough of the ring is free of
the annular groove to place a second screwdriver behind it. Progressively free the ring with two or three
screwdrivers until it can be pulled from the outer tube with pliers.
3.3 Remove the lower cover (18) and inner snap ring (17) complete with glued-on 'O' ring (19) from
the base of the outer tube (11). Remove and discard 'O' ring (19). Remove old adhesive from snap ring
(17).
3.4 Referring to Fig 6.3 remove four retaining screws (19) and 'O' ring retaining plate (20) from the
bottom of the elevation tube.
3.5 Remove 'O' ring (21), spacer (18), gauze filter (22) and washer (23) from the elevation tube.
Discard the 'O' ring and renew during assembly.
3.6 Referring to Fig 6.2 pull out piston rod (36) from the elevation tube sufficiently to drift out Spirol
pin (8). Remove washer (7) from the piston rod.
3.7 Ensure top clamp (Fig 6.3 item 26) is in the disengaged position and lay the telescopic column
horizontally with the top clamp downwards.
3.8 Withdraw the tank assembly from the elevation tube. Remove top clamp pad (Fig 6.3 item 27).
Note the orientation of the tank assembly relative to the elevation tube for assembly.
4 To dismantle the tank assembly (Fig 6.2):
4.1 Remove the tank assembly (Para 3).
WARNING!: This pedestal is pressurized to a maximum of 9.6 bar (140 psi)). Do not dis-
assemble or interfere with any component in the pressure system without proper
authority. Ensure all pressure is vented before disassembling any component in the
pressure system.
WARNING!: Ensure all pressure is vented before disassembling any part of the column.