Air Hose Restraint Installation; Before Starting - Doosan XP825WCU-T4i Operation And Maintenance Manual

Operating & Maintenance Manual

Air Hose Restraint Installation

Safety devices such as hose restraints (whipchecks) must be used to prevent hose whipping
if a connection fails. Whipchecks are to be constructed of woven stainless steel, galvanized
steel wire rope or chain with a minimum strength adequate for the supplied pressure and hose
diameter. Whipchecks must be fastened to suitable mounting points or shackles.
The mounts and/or shackles are to be of the same or greater strength as the whipchecks. An
engineer should be consulted about suitability of whipchecks, mounts, mounting points,
shackles and fittings as well as strength rating of materials. Whipchecks must be used at the
hose origination, termination and each hose to hose connection.
Hoses can fail in areas other than at connecting points and require daily inspection of the
hoses for:
• Cuts, cracks or kinks
• Weakened clamps due to rust and corrosion
• Damaged connections
• Deformity
• Incorrect or incompatible components or fittings
• Any visual damage
Hoses must be selected that are rated for the application as to the maximum pressure and
temperature to be encountered as well as compatible with the materials being conveyed inside
the hose. Hoses must be compatible with the compressor oil.

Before Starting

Open manual blowdown valve to ensure the separator tank has been vented of all pressure.
Close the valve before starting. Inspect the complete installation including remote fuel lines (if
any) and air hose routing and connections. Check battery for proper connections and
condition.
Combustible gas can cause severe burns, blindness or death. Keep
sparks and open flame away from battery.
Check the compressor oil level. Maintain the oil level between bottom and midway of the sight
glass on the separator tank.
Check engine oil level. The proper level is labeled on the engine dipstick. Add oil when
required. Do not overfill.
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WARNING
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Operating Instructions