Tweco PakMaster 50XL Plus - Manual (Page 27)

Manual 0-2744 21 SECTION 4: OPERATION
3. Gas Pressure Regulator/Filter Assembly
Pressure regulator to adjust the input gas pressure to
the Power Supply. The pressure regulator has its own
built-in air line filter.
4. Optional Dry Air Filter Assembly
This optional in-line filter removes moisture and con-
taminants from the air stream when using compressed
air. This filter is capable of filtering to .85 microns.
1
2
3
4
A-02460
Figure 4-5 Rear Panel showing Optional Dry Air
Filter
5. Optional Two Stage Air Line Filter Assembly
This optional filter will remove moisture and contami-
nants from the air stream when using compressed air.
The filter is capable of filtering to at least 5 microns.
A-00924
1
2
3
4
Figure 4-6 Rear Panel Showing Optional Two Stage
Filter
4.04 Sequence of Operation
The following is a typical sequence of operation for this
cutting system. Refer to Appendix II for a block diagram.
1. Close main power source disconnect.
a. AC power is available at the Power Supply.
2. Place RUN/SET /LATCH switch to RUN mode.
3. Place the ON/OFF power switch on the front panel
of the Power Supply to ON.
a. AC Power indicator LED blinks ON and OFF
for eight seconds then stays ON.
b. Fan turns on.
4. Place RUN/SET/LATCH switch to SET mode.
a. Gas solenoid opens and gas flows to set pres-
sure. Set to 70 psi at Gas Pressure Regulator/
Filter Assembly.
b. GAS indicator turns ON.
NOTE
GAS indicator will not come ON if the gas pres-
sure is set below 35 psi (2.4 bar) at the Gas Pres-
sure Regulator/Filter Assembly.
5. Place RUN/SET/LATCH switch to RUN mode.