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MACS II User Manual
101796668 Revision E 84
The element life is based upon cleaning cycles and pressure drop. The
estimated life of the element is 10 to 15 cleaning cycles. If the element has
exceeded this level, discard and replace.
Recommended cleaning fluids are acetone, mineral spirits and a variety of
others. Halo-carbon grease, Krytox, and silicone are the only recommended
lubricants.
8.1.2.1.3
Filter Reassembly
8.1.2.1.3.1 Lubricate and install new bowl seals. The backup ring is installed
closest to the threads.
8.1.2.1.3.2 Lubricate a new seal with a compatible lubricant and install into outlet
port of element.
8.1.2.1.3.3 Slip element over mandrel. Be aware that teflon (T) o-rings are difficult
to engage.
8.1.2.1.3.4 Inspect all threads for debris and clean thoroughly. Lubricate the
threads on head and bowl and assemble. Never use any tool other than a
strap wrench to turn the bowl. When screwing the bowl into the head it
should take approximately 7-1/2 turns of the bowl to reach the point
where the bowl seal engages the head. At this point there will be
noticeable resistance when turning the bowl. It should take approximately
1-5/8 turns of the bowl past this point to reach metal-to-metal contact of
the bowl face with the head. The bowl is properly seated in the head at
this point. If this metal-to-metal contact is not achieved, the unit is not
properly assembled and the bowl must be unscrewed and examined to
determine if there is a problem with the installation of the seals or if there
is some type of debris in the threads.
8.1.2.1.3.5 Correct the problem and repeat this step if necessary.
8.1.2.1.3.6 After assembly, check for leaks while re-pressurizing.
8.1.2.2. Tescom High Pressure Valve Repair
The following items are needed to perform valve repair on the MACS:

2 ½ inch open end wrench (101582697)

2 inch open end wrench (101582698)

Repair Kit (101629337)

Torque Sensor Tool (101629332)