CHAPTER 4-
SCHEDULED MAINTENANCE (cont.)
Section II. SCHEDULED MAINTENANCE
4-2. PREVENTIVE MAINTENANCE PROCEDURES.
As soon as possible after each use,
the torch kit should be cleaned and inspected as described in paragraph 4-1 of this Manual. In addition,
preventive maintenance checks should be performed every 120 days (quarterly) to keep the kit ready for
use. Table 4-1 outlines the procedures for the quarterly PMCS.
Table 4-1. Quarterly Preventive Maintenance Checks and Services
ITEM INSPECTED
PROCEDURE / ACTIONS
Oxygen Cylinder:
Wipe down with a clean, dry, oil-flee cloth.
Cylinder
Check for any type of damage, i.e. burns, cracks, or (composite
cylinders only) chips in the fiber wrap.
Oxygen Valve
Check for leaks. Ensure handle turns freely.
Teflon O-Ring (cylinder
neck/valve interface)
When valve is removed, before reinstalling, always ensure a new Teflon
o-ring is in place and is not damaged. Do not reuse cylinder valve o-
rings.
Regulator:
Wipe all surfaces with oil-free cloth. Brush can be used on metal
surfaces.
Regulator -
Body / Fittings
Check for nicks, dents or other damage.
Soft Tip Nipple, O-Ring
Check for nicks, gouges, excessive wear, or other damage that may
cause leaks.
Valve Nut
Ensure proper functioning. Hand tight only. Inspect for cracks, damaged
threads, etc.
Female Quick
Disconnect
Check for dents or other damage. Inspect for obstructions. Ensure hose
will seat and lock in place.
High Pressure Gauge
Check gauge for visible damage. Pressurize and check movement.
Hose Assemblies, Oxygen:
Wipe all hose surfaces with an oil-free cloth. An oil-free brush can be
used on metal surfaces/fittings.
Low Pressure Hose
Check for burns, cuts, abrasions, excess wear, other damage.
Hose Fittings /
Connectors
Inspect for dents, bends, or other damage. Ensure proper
seating/locking in regulator/torch.
Torch Assembly:
Wipe all surfaces with a clean, oil-free cloth. An oil-free brush can be
used on metal surfaces.
Torch Body
Check for dents or other damage. Inspect serviceability of the
threading.
Collet Nut
Check for dents or other damage. Inspect the serviceability of the
threading.
