ASP STERRAD 100, Service Manual

Page: 97 / 309

Remove the Oil Return Valve
12. Unfasten the VCO connector securing the oil return valve to the
pump. (Block 2 and STERRAD 100 S Systems).
Remove the Pump
13. Remove the 8 bolts and washers securing the pump to the sump
plate. (For D16A pumps there are 4 bolts fastening the pump feet to
the frame.)
Block 2. Remove the 17 mm bolts fastening the front of the pump to
the unit. Loosen the 2 rear 17 mm bolts. Slid the pump to the rear
using the built-in handle. You may also cut the banding straps
retaining the pump to the tray and then remove the pump without
unbolting it.
14. Make sure the pump is no longer attached to the frame either with
bolts or cabling. Slide the pump toward the rear of the unit and
remove.
WARNING! The pump is very heavy, if possible have someone
help you or slide the pump onto your closed tool box
to move it out of the way.
Replacement Set-Up
F
Check that all vacuum fittings to be installed are clean and free of
foreign material
F
Lightly coat all O-rings and seals with a thin film of high vacuum
grease before assembly
F
Note the orientation of the pump in the illustrations. The drain valve
is oriented toward the front of the sterilizer on the Block 1.8 units. It
is oriented toward the rear of the sterilizer on Block 2.0 units. The
bellows assembly requires two elbow connections on Block 1.8. The
bellows is attached straight up on Block 2.0 units.
F
Be sure the vacuum pump sump plate or the pump tray, is attached
to the pump platform in the proper orientation. The pump motor is
at the sloped end of the plate.
F
If you are converting a D16A pump to a D16B, be sure you have the
conversion kit and conversion documentation from the ASPS Help
Desk.
F
The numbers in the diagram below match the steps in the
replacement procedures. The top illustration is a Block 1 unit. The
bottom is a Block 2 unit.
Removal/Replacement Procedures Vacuum Subsystem
ASP Service Guide rev. D STERRAD® 100 Sterilizer 4-11