Thermo Scientific 1160, Instruction Manual

Page: 38 / 52

MODEL SK668
COMPRESSOR SERVICE KIT
For use on 668 Model Compressors
CAUTION:
Improper assembly or use of damaged parts may lead to
premature failure. To avoid frequent repairs follow the recommended
assembly procedures.
Part No.642751A 11/08
NOTE:
Before you begin, read these instructions thoroughly and
assemble the necessary tools. You will need:

1/4” Hex Socket attachment for torque wrench

Torx T-27 attachment for torque wrench (for retainer screws)

Torx T-25 attachment for torque wrench (for head screws) .

5/32” Allen wrench for torque wrench (eccentric screw)

Flat Screwdriver

Clean Cloths
WARNING:
Unplug the compressor before beginning disassembly.
This kit includes the following parts:
625175 Head Screw (4)
625180 OR 625776
Screw-Piston Cup (1) each
670031 Cylinder Sleeve (1)
625591 Flapper Screw (2)
624396 Piston Cup (1)
Post 04/01 Production
623143 Head Gasket (1)
623071 O-Ring (1)
621485
Valve
Flapper (2)
617562
Valve
Keeper (2)
621647 Valve Backer (1)
624684 Piston Cup (1)
Pre 04/01 Production
B-2