Measuring Torch Gas Flows - ESAB PT-38 Manual De Instrucciones

SECTION 5
8. If torch cable was removed - reconnect hose connection, tighten with wrenches, and pull insulating
sleeve forward. Reconnect pilot arc wire and pull insulating sleeve forward.
9. Again pressing downward on cap and compressing spring, place the torch/piston assembly into the
handle cavity while observing the body and cap key guides. Place the hose, cable and pilot arc wire
into the housing. Fold the wiring into the handle assembly cavity, being careful not to overlap any
mating surfaces of the housing. Install trigger switch, spring, and lever.
Cap
Spring
O-ring
Piston
10. Replace the other half of the handle and tighten the screws. Tighten screws until there is no gap be-
tween the two halves. Note: If halves do not seat flush, remove one half and check for hoses and wires
that are overlapping the handle surfaces. Depress switch to ensure proper operation and clearance.
5.4 Measuring Torch Gas Flows
If low gas flow is suspected of causing poor cutting performance or short
consumable life, the flow can be checked by using the Gas Flow Measuring
Kit. The kit includes a hand held rotameter (flowmeter) which will indicate
the gas flow rate exiting the torch. The kit also includes a set of instruc-
tions which should be followed exactly to insure safe and accurate use of
the rotameter. (See Optional Accessories section).
Total air flow rate in the PT-38 should be 375 cfh (10.6 cmh) minimum with
90 amp consumables installed.
Cap guide
107
MAINTENANCE
Ferrule not protruding
Cap guide
Cap key
Body guide
Flow Measuring Kit