8-16 Care and Maintenance
PA-1628Operator's ManualH3-45 COACH
Cabin Area Air Filter
To access central HVAC system filter, open one of
the two baggage compartment adjacent to the
evaporator compartment. The filter is located behind
an access door held shut by three retaining screws
Slide out the filter, clean or replace.
PASSENGERS AREA AIR FILTER
Air Filters In The Overhead Compartments
Remove, clean or replace the air filter located behind
each overhead baggage compartment fan. Slide the
filter in and out using the tab fixed on the side of the
filter.
OVERHEAD COMPARTMENT FAN AIR FILTER
HOSE INSPECTION
Inspect hoses for leaks regularly to ensure efficient,
economical and safe operation of the engine and
related equipment. Carefully inspect all fittings,
clamps and ties. To prevent chafing, make sure
hoses are not touching shafts, couplings, heated
surfaces, sharp edges or other parts. Since hose
clamps and ties can vibrate loose or fail over time,
frequently inspect and tighten or replace as
necessary.
Correct leaking hoses immediately. Failure to correct
leaks can cause severe damage to the equipment,
as well as increase operating costs due to lost fluids.
Treat fuel and oil leaks as an immediate fire hazard.
WARNING
Personal injury and property damage may result
from fire caused by leaking flammable fluids.
Hose Service Life
Hoses have a limited service life. Thoroughly
inspect hoses annually. Look for surface damage or
indications of twisted, worn, crimped, cracked or
leaking lines. Replace damaged hoses immediately.
Hoses should be replaced during major overhaul or
after a maximum of seven service years. Be certain
replacement hoses are matching the original
equipment manufacturer's specifications.
LUBRICATION
Grease all lubrication points during scheduled
maintenance. For heavy loads or extended use,
lubricate more often. Refer to the Maintenance
Manual, section 24 for information on lubrication.
WHEELS AND TIRES
Check for loose wheel nuts. Inspect all types of rims
for cracks. Cracks can appear in many places but
typically radiate out from where a load is applied.
Both aluminum alloy and steel wheel nuts should be
tightened to 450 to 500 foot- pounds (610 to 680
N.m.) torque.
Keep the tires inflated to the recommended inflation
pressure to prolong tire life and for safety.
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