New Holland SD440A, Repair Manual

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SECTION 1 - GENERAL INFORMATION
page 1-10
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AIR AND AIR HOSES
COMPRESSOR HOSES may move unexpectedly when
suddenly disconnected.
USE PROPER air nozzles. Do not use compressed air to
clean clothes or direct it toward any part of yourself.
AVOID getting chemicals into eyes. Use eye protection.
HYDRAULICS AND HYDRAULIC LEAKS
AVOID high pressure fluids.
ESCAPING HYDRAULIC FLUID IS A SERIOUS
HAZARD. Escaping hydraulic fluid under pressure can
penetrate the skin causing serious injury. Relieve pressure
before disconnecting the hydraulic lines. Check/tighten
all connections BEFORE applying pressure.
BEWARE excessive hydraulic pressure. Explosive
structural failure can result.
BEWARE air locks in cylinders. Large cylinder
displacements can occur without hydraulic oil flow.