SECTION 5
MAINTENANCE
5. Inspect the o-ring on the torch. If it shows signs of wear or damage, replace it. If
it is dry, lubricate it with a thin film of lubricant supplied with spare parts kit
O-ring
5.5
Measuring Torch Gas Flows
If low gas flow is suspected of causing poor cutting performance or short consumable
NOTE:
life, the flow can be checked by using Plasma Torch Flow Measuring Kit 19765
Part numbers in parenthesis ap-
(0558000739). The kit includes a hand held rotameter (flowmeter) which will indicate
ply to "CE" / European units only.
the gas flow rate exiting the torch. The kit also includes a set of instructions which
should be followed exactly to insure safe and accurate use of the rotameter.
Total air flow rate in the PT-20AMX should be 153.5 l/m (325 cfh) minimum with
any nozzle at 5.2 bar (75 psig).
Flow Measuring Kit
280