Steris Amsco 3085 SP, Maintenance Manual

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7-22
764332-898
its parts, ensure the proper disposal of hazardous and
other regulated waste in compliance with federal,
state, and local regulations.
• Lead (Pb) Weight - solid weight (P146653-460,
quantity = 1) located in table base at narrow end.
Approximate weight = 90 lb (41 kg).
• Lead Acid (Pb/H
2
SO
4
) - gelled cell batteries (P93908-
637, quantity = 2 and P136806-806, quantity = 2
battery-powered table only) located in table base in
narrow end. Approximate weight = 39 lb (14 kg).
• Mercury (Hg) - in sealed glass tube electrical
switches, contained in RTV potted Return-to-Level
switch assemblies (P136807-726, P136807-727 and
P136807-728). Quantity = 3 assemblies per table (two
mercury switches per assembly). Two assemblies
are located in back section frame and one assembly
is located in seat section frame. Approximate total
mercury per table = 18 grams.
• Hydraulic Oil - Chevron AW32 or equivalent
(P150823-197; service part P764322-636). Oil is in
hydraulic components located in base, on column,
in seat section, in back section, inside column, andin
all hydraulic system lines and hoses. Approximate
quantity = 0.9 US gallons (3.4 L).
• Gear Compound - Chevron grade 680, located in
oiler pads in column. Approximate amount =
1 ounce (28 grams).
• Lead (Pb) in Solder - contained in solder on circuit
boards and in some miscellaneous wire
connections. Minute amounts.
• Electronic and Electrical Parts - not known to
require special disposal methods at date of this
manual.
• Metal Parts - made from aluminum (Al), steel (Fe),
cast iron (Fe), copper (Cu) and copper alloys (Cu/
x), plastic, synthetic rubber, plating (Cr, Ni, Zn, Au)
and adhesives not known to require special disposal
methods at date of this manual
.
7.31 COLUMN BEARING REPLACEMENT
7.31.1 Required Tools and Supplies
Have the following items on hand to complete the
Column Bearing Replacment:
• Adjustable Height Folding Sawhorse (2).
• 4 x 4" - 36" (914 mm) long (2).
• 2 x 4" - 48" (1219 mm) long (2).
• Tie-Down Straps (2).
• Anti-Seize (P764331-557).
• Loctite 242 (R5300-554).
• Loctite 222 (R5300-545).
• As Needed:
• Bearings, four per table (P129359-671).
• Felt Oilers, two per table (P129359-859).
• Chevron 680 Oil, used to soak Felt Oilers and
lubricate column (P764326-267).
NOTE: If replacing the felt oilers, soak the new oilers
in the Chevron oil while performing the procedure.
• Pressure Plate and Hardware:
NOTE: The pressure plate was removed on 3085 SP IPX4
Surgical Tables after Serial Number B413304-015. To
perform the Column Bearing Replacement, the pressure
plate and associated hardware must be returned to the
table.
• Support, Column Guide (Pressure Plate), one
(P146653-433).
• Setscrew, #10-32 x 5/16", five (P043282-091).
• Screw, Button Head, #10-24 x 1/2", five (P129352-
751).
7.31.2 Procedure
NOTE: Since each version of the Amsco 3085 SP Surgical
Table could be slightly different, it is a good idea to take
pictures during the disassembly process to make reassembly
easier.
1. Prepare sawhorses as follows:
a. Raise each sawhorse to full height.
b. Attach both 4 x 4" boards to top of sawhorses
using wood screws (see Figure 7-11).
2. Lock floor locks.
3. Remove base and column shrouds per S
ECTION
7.4,
S
HROUD
R
EMOVAL
/ R
EPLACEMENT
P
ROCEDURES
.
4. Locate column pressure adjustment plate (see
Figure 7-7) and proceed as follows:
a. If pressure plate exists, loosen five setscrews
one full turn.
b. Remove pressure plate by removing and saving
five button head screws.
c. Set plate and hardware safely aside.
d. If plate was not attached, have needed parts
ready to be added during reassembly.
WARNING – PERSONAL INJURY AND/OR
EQUIPMENT DAMAGE HAZARD: Read this
procedure carefully and completely before
starting column bearing replacement
repair. Failure to follow this procedure
correctly could result in personal injury
and/or equipment damage.