CTD CM325R, Инструкция по эксплуатации и руководство по техническому обслуживанию, Страница: 16 / 34

Air Supply:
The air supply must be turned off and all electrics disconnected before making adjustments on the power feed.
A working pressure of 75 PSI (pounds per square inch at 5.4 kg/cm
2
) is required. An industrial-type compressor
of at least 3 CFM (cubic feet per minute) is recommended. An additional 3 CFM is required for Spray Mists.
A conveniently located valve should be supplied by the user to shut off the air line.
Arms should be raised or
lowered
by hand
when setting up machine. The machine must use clean, filtered air. The speed of descent of
the saw head will vary if the air pressure varies. An Air Filter/Regulator/Lubricator is essential.
Air Cushion Bearing System:
The machine you have purchased comes with a built-in air cushion bearing system that works off your air supply. If you
have purchased an air/pneumatic system, then the air bearing will be charged when you add air to the machine.
If the machine you purchased is a manual machine, then the 1/4” blue air line at the back base of the machine must be
connected to at least 75lb PSI of air pressure for the bearings to work properly.
The operator should have the air switch in the “off” position when not changing the mitering angles. The air bearing is self
cleaning and self lubricating when used with the CTD air filter/regulator/lubricator. If the machine was bought without the
FRL, then every 2 months, 3 drops of light machine oil should be placed into the blue 1/4” inlet air line at the back of the
machine.
FR:
An Air Filter/Regulator is installed ahead of the air inlet to the machine. This system helps prevent foreign material from
entering the system. It also provides lubrication in the air supply which helps prevent valves and cylinders from sticking.
The FR is comprised of two different components.
1. The Air Filter Bowl is located on the left side and is provided with an automatic drain. This collects and
then releases foreign matter and condensation collected by the air filter.
2. The Pressure Regulator, which is located on top of the air filter, controls the amount of air pressure allowed
into the system. An operating pressure of 75 PSI @ 5.4 kg/cm
2
is required. (This is set at the factory.)
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Trouble Shooting the Pneumatic System for Downfeed of Saw Head:
If the Air Feed no longer has smooth action, check the Downstroke Control Valve, P/N 2B3P61. If there is no
Speed Control, replace with Part No. 2B3P61. If air is leaking from the bottom of the cylinder, replace Cylinder
with Part No. 2B3P05 (for 200R and CM325R).
4-Way Valve:
The 4-Way Valve is the main control, five port valve located on the Air Feed Unit. If the saw is sticking in the
up or down position, the spool located in the valve probably is not shifting from side to side as necessary. This
condition is caused by unclean air passing through the system. The internal parts become gummed up, and the
air pressure can no longer shift the spool. A broken spring in the valve is another common cause. A 4-Way Valve
Repair Kit, P/N B3P76, is available for the valve.
Air Filter/Regulator