Steris Amsco 3085 SP, Руководство по обслуживанию

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7-14
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4. Remove hex head cap screws and flat washers (17
and 18) from frame (1).
5. Remove shims (14 and 15) from cylinder (notice
how they are placed with punch marks toward foot
section).
6. Loosen jam nut holding cylinder rod to cylinder
knuckle.
7. Hold cylinder with one hand while unscrewing
cylinder rod from knuckle. Once cylinder is loose,
lower it down and out of table base.
7.17.6.2 Replacement
NOTE: Always replace sealing washers.
1. Screw new rod of new cylinder into knuckle.
2. Reattach shims (14 and 15, with punch marks on
pads toward leg section of table).
3. Start screws (17) with washers (18) into shims.
4. Attach hydraulic hoses, ensure they are connected
to correct ports as marked during removal.
5. Lower seat section until mounting pads fit snugly
against table frame (underside of skirt). Tighten
screws into shims.
7.17.7 Side Tilt Cylinder
NOTE: The numbers in parentheses () refer to items found
on Figure 9 located in Illustrated Parts Breakdown (refer to
Tab) unless otherwise noted.
7.17.7.1 Removal
1. Raise table to highest position.
2. Lower and remove shroud per S
ECTION
7.4, S
HROUD
R
EMOVAL
/ R
EPLACEMENT
P
ROCEDURES
.
3. Position table in full right-side tilt, then in Reflex
position.
4. Remove two pipe plugs (20) holding clevis pins (12)
through saddle and cylinder knuckle.
5. Drive two clevis pins (from seat section side)
through knuckle enough to release side tilt cylinder.
Cylinder should now be loose. Position table into
far right side tilt.
6. Position table to full left side tilt to fully retract
cylinder.
7. Remove hydraulic hoses (note each hose position),
then place caps on fittings.
8. Remove two socket head screws and washers (8 and
7) holding locking plate (6) to knuckle (5).
9. Tap knuckle (from behind) to move it from locating
pin.
10. Pull cylinder down and away from table. Be
careful not to pull out any electrical plugs.
11. Remove setscrew (30) holding side tilt cylinder to
dowel pin (25) in bracket (10).
12. Use a large punch to tap dowel pin out of bracket.
NOTE: Pin is inserted with interference fit, so it may be
difficult to tap out.
13. Remove fittings from cylinder.
7.17.7.2 Replacement
NOTE: Always replace sealing washers.
To replace the cylinder, follow S
ECTION
7.17.7.1,
R
EMOVAL
, in reverse order.
7.18 HYDRAULIC VALVE
REPLACEMENT PROCEDURE
Refer to Figure 23 and Figure 24 located in Ilustrated
Parts Breakdown. There are 10 hydraulic valves on the
column. S1 through S8 are spool-type valves and S9
and S10 are cartridge-type valves.
There are also three hydraulic valves on the hydraulic
pump assembly. S11 and S12 are spool-type valves and
S13 (on early units) is a cartridge-type valve.
7.18.1 S1 Through S8
NOTE: The numbers in parentheses () refer to items found
on Figure 23 located in Illustrated Parts Breakdown (refer
to Tab) unless otherwise noted.
Important: Removing the valve causes some hydraulic fluid
leakage. Have a lint-free cloth available to catch any leakage.
1. Disconnect ac power.
2. Remove shroud as described in S
ECTION
7.4,
S
HROUD
R
EMOVAL
/ R
EPLACEMENT
P
ROCEDURES
.
3. Raise table to maximum height.
4. To support raise/lower mechanism, insert a
screwdriver through access hole at back of column.
Slowly lower table until it contacts screwdriver.
5. Position table in sufficient left-side tilt to access table
control board mounting screws.
6. P4 (Figure 19, 52) needs to be removed to access
lower mounting screws.
7. Gently reposition table control board to gain access
to valve coils located behind table control board.
8. Remove coil jam nuts (Figure 23, 21, 19 mm) from
desired pair of solenoid valves.
9. Slide coil (Figure 23, 20) off of both left and right
side of manifold assembly.