OMRG25204 oem uncert & tier 1.pdf - John Deere Industrial Engines

Lubrication & Maintenance/Daily4. If the air cleaner has an automatic dust unloader valve(A), squeeze the unloader valve on air cleanerassembly to clear away any dust buildup.If equipped with air intake restriction indicator gauge(B), check gauge to determine if air cleaner needs tobe serviced.IMPORTANT: Maximum air intake restriction is 6.25kPa (0.06 bar) (1.0 psi) (25 in. H 2 O). Aclogged air cleaner element will causeexcessive intake restriction and areduced air supply to the engine.Dust Unloader Valve and Indicator GaugeRG7332A –UN–22JAN995. Make a thorough inspection of the enginecompartment. Look for oil or coolant leaks, worn fanand accessory drive belts, loose connections and trashbuild-up. Remove trash buildup and have repairs madeas needed if leaks are found.NOTE: Wipe all fittings, caps, and plugs beforeperforming any maintenance to reduce the chanceof system contamination.Inspect:• Radiator for leaks and trash build-up.• Air intake system hoses and connections for cracksand loose clamps.• Fan, alternator, and accessory drive belts for cracks,breaks or other damage.• Water pump for coolant leaks.NOTE: It is normal for a small amount of leakage to occuras the engine cools down and parts contract.Excessive coolant leakage may indicate the needto replace the water pump seal. Contact yourengine distributor or servicing dealer for repairs.A—Dust Unloader ValveB—Air Restriction IndicatorOURGP12,0000048–19–13OCT06–4/425-4 110306PN=71