Section 6 − Frequently Asked Questions - Smith Little Torch Owner's Manual

Use only industrial grade hose. Grade T hose is acceptable for
all fuel gases. Grade R hose is for acetylene only.
The torch hose is of a special material designed to be compatible with the
various fuel gases. The maximum length of hose used should not exceed
12 ft (3.7 m). The hose may be attached to standard welding gas hoses
3/16 in. or larger diameter with special brass fittings if the gas cylinders
must be located a further distance from the torch. The brass B-type fit-
tings for connecting the hoses can be purchased from most welding
equipment dealers.
For your protection, use only genuine Smith Equipment hose and re-
placement parts. Smith Equipment replacement hoses come with
step–by–step replacement instructions and a tool for securing the brass
ferrules over the hose ends.
Repairs and replacement parts are available through your authorized
Smith Equipment distributor. Find a dealer at www.smithequipment.com.
SECTION 6 − FREQUENTLY ASKED QUESTIONS
How do I replace the torch hose?
Step–by–step instructions, a ferrule (brass hose retainer band), and fer-
ule replacement tool accompany all replacement hose assemblies.
What are the part numbers for replacement hose assemblies?
D
Oxygen
D
Fuel Gas
D
Hose Pair
Why is it hard to light size 1 and size 2 tips or keep them lit?
This condition is typically due to excessive gas pressures. A maximum of
just 2 psig (13. 7 kPa) outlet pressure is recommended for both gases
and the use of an open flame makes lighting the tiny flames much easier.
Does the torch require adaptors to fit cylinder regulators?
For most regulators the answer is no. The hose assemblies have stan-
dard size B, 9/16 in. welding hose-type connections and will attach to
most industrial welding gas regulators.
Can the orifices in the torch tips be cleaned?
If the orifices are obstructed by flux, the tips can often be cleaned by boil-
ing them in water for about 10 minutes. Other methods used to clean dirty
tips involve the use of a jeweler's type steam cleaner or an ultrasonic
cleaner.
What fuel gases will work with the torch?
The torch may be operated with most commercially used welding gases
including acetylene, propane, hydrogen, propylene, and butane. It may
also be used with city gas (natural gas) at a minimum pressure of 1 psig
(6.9 kPa) at the torch.
NOTICE − Most city gas lines only produce 1/4–1/2 psig (1.7–3.4 kPa).
What fuel gas should I use with the torch?
Most operators use either acetylene or propane. However both gases of-
fer specific advantages and disadvantages. Acetylene produces a very
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