Schaerer 7300 - Page 44

SECTION IV
MAINTENANCE / SERVICE
DANGER
If weight of table top is not properly
supported, as described in step 1,
before performing following steps, table top could
fall when cylinder connecting pin is removed,
causing serious personal injury or death to
technician.
(10) Using a hammer and punch, drive cylinder
connecting pin (6) out of trendelenburg cylin-
der (4).
(11) Remove four screws (7), lockwashers (8), and
pivot bracket (9) from pivot block (10). Remove
Trendelenburg cylinder (4) from table.
(12) Loosen setscrew (11).
(13) Using a hammer and punch, drive cylinder
connecting pin (12) out of pivot bracket (9), and
separate pivot bracket from Trendelenburg
cylinder (4).
B. Installation
(1) Install pivot bracket (9, Figure 4-9) on
Trendelenburg cylinder (4) and secure with
cylinder connecting pin (12).
(2) Secure cylinder connecting pin (12) in place by
tightening setscrew (11).
(3) Install pivot bracket (9) on pivot block (10) and
secure with four lockwashers (8) and screws (7).
Tighten screws (7) to 51.6 ft-lbs (70 N•m).
(4) Coat o-rings on fitting connectors (2) and fitting
seals (3) with oil.
(5) Connect two hoses (1) to Trendelenburg cylinder
(4) and secure with fitting seals (3) and fitting
connectors (2).
(6) Using hand control, extend or retract
Trendelenburg cylinder (4) until base of cylinder
is aligned with bracket (13).
(7) Secure base of Trendelenburg cylinder (4) to
bracket (13) with cylinder connecting pin (6).
(8) Install two retaining rings (5) on cylinder con-
necting pin (6).
(9) Secure two hoses (1) to tube with cable tie.
(10) Using hand control, move table top until weight
of table top is no longer being supported by floor
or supports.
(11) Install upper column cover (7, Figure 4-8) and
column covers (6) on column assembly (8) and
secure with four screws (5).
(12) Secure column covers (6) together with six
screws (9).
(13) Install front bridge cover (2) on seat weldments
(4) and secure with two screws (3).
(14) Connect spring (1) to front bridge cover (2).
(15) Add oil to reservoir (Refer to para 4.2).
Page 4-10Printed in U.S.A.
Figure 4-9. Trendelenburg Cylinder
Removal / Installation
CA762600
1
2
3
4
5
6
7
8
9
10
12
1
2
3
5
CABLE
TIE
11
13
© Schaerer Mayfield USA, Inc. 2004