LAWSON ENGINEERS LTD Ref : PJ1682
Issue Date : 06.06.2006
9.4 A-FRAME / SKID ASSEMBLY PROCEDURE.
Reverse of above.
9.5 SNUBBER
DIS-ASSEMBLY
PROCEDURE.
See drawing SW1673D-0001 Snubber Assembly.
1.
Disconnect all hose clamps, QD’s and grease lines.
2.
Remove damping cylinder pin (54&56) and keyplates (55) and remove
damping cylinders.
3.
Remove swing frame pins (57) & (58) and keyplates (59) and lift top beam
clear.
4.
Unbolt rope guards (20,28,67,68) & remove.
5.
Support the sheave using a wedge shape bar pushed through the sheave
sideplates, unbolt sheave loadcell keyplates (8) and remove loadcell (25).
6.
Remove sheave (23)
7.
Unbolt motor gearbox (27) and remove with motor spacer (35) and pinion
(32).
8.
Support the Damping Frame weldment (43), remove the sheave pivot pin (39)
and lift the Damping Frame clear.
9.
Lift the Sheave Bracket weldment (26) clear of the Lower frame (36)
10.
Unbolt umbilical guides (22), from docking box (11).
11.
Unbolt the docking box (11) from the rotating frame (42) and lift the Lower
frame / docking box assembly clear of the rotating frame.
12.
Unbolt the latch cylinders from the docking box.
13.
Unbolt the docking box (11) from the ring bearing (29).
14.
Remove the latch pins (17) and remove the latches (12).
15.
Unbolt the air spring retaining plates (5).
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