EN-19
Kendall SCD 700 Series
Section VI - General Disassembly / Reassembly
Warning:
Always make sure the power cord is unplugged before attempting to perform any installation or removal
procedures.
• Follow ESD (Electrostatic Discharge) safety procedures to protect the electronics located within the controller.
• Remove the power cord cover by first removing the retaining screws on the cord cover door and then pulling the
cover off.
• Remove the power cord by rocking back and forth until the cord is loose.
• Remove the five (5) screws that hold the front cover to the rear cover with a Torx T15 driver with an extra long
handle. If this is not available, then the adjustable bed hook must be removed first. See the section regarding the
adjustable bed hook.
• The front cover may now be carefully pulled away. To separate the front and rear covers, reach in and remove the
transducer tube from the transducer on the front cover. The front cover can be opened to the left like a book hing-
ing on the wire harness.
• Observe and note the locations of all tubing and wiring harnesses for ease in reassembly.
• If required, disconnect the electrical connectors and tubes so the two case halves can be separated completely.
• Reassembly is the reverse of disassembly.
• When assembling the enclosure use care to retain the molded in gasket to ensure liquid ingress protection.
Battery Pack (Removal / Installation - see Figure 6)
• Disconnect the battery wiring harness from the main CPU board, cut wire ties as required, noting their locations
for reassembly.
• Slide the battery pack out of its pocket.
• Installation is the reverse of removal.
Compressor (Removal / Installation - see Figure 8)
• The compressor is not a user serviceable component. Do not disassemble. Do not oil. The compressor is held in
place by friction of its molded foam enclosure.
• Disconnect the compressor wiring harness from the Controller Board on the front case and cut wire ties as
required, noting their locations for reassembly.
• Disconnect the compressor output tube at the check valve.
• Remove the compressor intake tubing from the muffler.
• Slide the compressor out of its pocket with its molded foam enclosure.
• If a new compressor is installed, perform a burn-in test (test mode 1). This test takes approximately 16 hours, but
can run unattended.
• Installation is the reverse of removal.
Muffler (Removal / Installation)
• The muffler is a custom plastic part used to keep the Kendall SCD 700 Series Compression System running quietly.
• To remove the muffler, detach the compressor intake tubing and pull the compressor outlet check valve from its
retaining clip.
• Remove the two screws holding it in place and remove the muffler.
• For reinsertion of the muffler be sure to route the intake tubing properly.
Valve Manifold (Removal / Installation)
• Remove the muffler (see previous section).
• The valve manifold is located in the center of the controller on the rear case. It is a plastic manifold block with six
solenoid valves. No attempt should be made to repair a damaged manifold or valve. Return the entire assembly
for repair or replacement.
• Inspect tubes that lead to the manifold for kinks and proper attachment before performing any work. Detach all
tubing from the manifold fittings. Note the location of connections and the tubing routing for ease of reassembly.
• Disconnect the valve wiring harness from the Controller Board on the front case. Cut wire ties as required, noting
their locations for reassembly (see Figures 9 and 10).
