Auxiliary (Backup) Hand Control Replacement - Steris 4085 Maintenance Manual

3. Turn Main Power Switch to OFF and remove
battery fuse (refer to supplied Operator Manual for
more information).
4. Remove table column cover per S
C C A
OLUMN OVER SSEMBLY
5. Remove appropriate base cover per S
T B C A
ABLE ASE OVER SSEMBLY
6. Remove stainless-steel socket head cap screws and
washers fastening rear base cover support bracket
to table base. Set fender washers, screws and bracket
aside (see Figure 7-19).
7. Disconnect electrical harness from battery charger
(connector TB3).
8. Remove and discard hydraulic screws and sealing
washers from top of pump.
9. Carefully lift pump assembly from table base.
10. Repair or replace pump and reinstall by reversing
procedure. Replace sealing washers and torque
hydraulic screws to 12 N•m (106 lbf•in).
NOTE: Replace (do not reuse) hydraulic screws and
sealing washers (see Figure 7-19). Ensure bolt threads,
manifold threads and hose connectors are free of rubber
seal particles.
11. Operate table through several movements to
ensure proper operation.
12. Check hydraulic oil level when table is lowered
completely and tabletop level. Level should be
65 mm (2-9/16").
Cover
Support
Bracket
Mounting
Screw
Electrical
Wiring
Hydraulic Screw
Figure 7-19. Replace Hydraulic Pump
7.13 AUXILIARY (BACKUP) HAND
CONTROL REPLACEMENT
Replace Auxiliary (Backup) Hand Control as follows:
1. Turn Main Power Switch to OFF and remove
battery fuse (refer to supplied Operator Manual for
more information).
7.3, T
ECTION ABLE
.
7.4,
ECTION
.
Hydraulic Screw
and
Sealing Washers
764333-766
2. Remove table column cover per S
C C A
OLUMN OVER SSEMBLY
3. Remove appropriate base cover per S
T B C
ABLE ASE OVER
4. Disconnect P5 connector from motherboard (see
Figure 7-20).
5. Cut strip and remove cable from cable chain.
6. Remove hand control from Auxiliary Compartment
and replace.
7. Reinstall hand control by reversing procedure.
8. Test table operation using Auxiliary (Backup)
Hand Control before replacing covers.
P5 Connector
Strip
Cable Chain
Figure 7-20. Unplug Auxiliary Hand Control
7.14 TABLE COLUMN COVER CAP
REPLACEMENT
Replace the surgical table column cover plastic cap
assembly as follows:
1. Position tabletop to level, slide at zero.
2. Raise tabletop to full height.
3. Properly support tabletop as in later steps Tilt is
disconnected (see Step 9).
4. Turn Main Power Switch to OFF and remove
battery fuse (refer to supplied Operator Manual for
more information).
5. Unplug hand control from Connection Panel (see
Figure 7-21).
6. Remove table column cover per S
C C A
OLUMN OVER SSEMBLY
7. Remove six upper fastening screws.
8. Carefully separate column cover cap halves and
disconnect cable
motherboard.
9. Verify tabletop is supported. Unscrew tilt cylinder
rod.
7-8
7.3, T
ECTION
.
ECTION
A .
SSEMBLY
7.3, T
ECTION
.
from connector
ABLE
7.4,
ABLE
P3 to