3–1 SYSTEMS – POWER

TM 1–1520–238–T–1 3–6 Change 6 3–1 SYSTEMS – POWER–UP (cont) 3–1 e. If pneumatics are required, perform the following procedures: (1) Layout the pneumatic hose in a manner which would prevent kinks and loops. (2) Attach pneumatic hose coupling to aircraft air nipple (TM 1-1520-238-23). WARNING · Never set PNEUMATIC POWER switch to ON unless pneumatic hose coupling is securely attached to the aircraft. The hose will attempt to straighten out with power applied, and whip around violently if not securely attached to the aircraft. Wear proper gloves and eye protection (goggles or equivalent) when operating the pneumatic system. · AGPU operation exceeds acceptable safe noise levels. Personnel working near or operating will wear approved ear protection to protect their hearing. Failure to comply could result in permanent hearing loss. CAUTION Handle pneumatic hose with care so spiral wrap and netting are not damaged. Keep hose off ground if wet or muddy (Use suitable supports). NOTE The SHAFT DRIVEN COMP indicator on the pilot caution/warning panel does not light when the pressurized air system (PAS) manifold is pressurized. (3) Apply pneumatic power via the PNEUMATIC control panel on the AGPU (refer to TM 55-1730-229-12 for operator and AVUM maintenance instructions on the AGPU).