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4. 9 AIR CLEANER MAINTENANCE
1.
Daily Maintenance
Inspect the air cleaner canister for holes, dents,
missing or mis-aligned gaskets. Check all hose
clamps for tightness and inspect the hose and
vacuator valve for damage (Fig. 4.9A).
2.
Servicing Cleaner Element (Fig. 4.9B)
DO NOT open unless the indicator indicates a blocked
filter or under normal scheduled servicing.
2.1
Unlatch and remove the cover assembly
2.2
Release the seal gently - The filter should be
removed gently to reduce the amount of dust
dislodged. Move the end of the filter up and down
and side to side or twist to break the seal.
2.3
Avoid dislodging dust from the filter - Gently pull
the filter off the outlet tube. Avoid knocking the
filter against the housing.
2.4
Always clean the sealing surface of the outlet tube
- Dust on the outside diameter of the housing could
hinder an effective seal.
2.5
Always clean the inside of the outlet tube - Dirt
inside of the outlet tube will reach the engine. It
only takes 9 grams of dirt to dust an engine.
2.6
Check your old filter. Inspecting your old filter will
detect foreign material on the sealing surface that
may causing leakage.
2.7
Inspect the new filter for seal or pleat damage.
2.8
Insert the new filter properly - The seal area is on
the inside of the open end of the primary filter. A
new filter has a dry lubricant to aid installation. The
critical sealing area will stretch slightly, adjust
itself and distribute the sealing pressure evenly. To
complete a tight seal, apply pressure at the outer
rim of the filter, not the flexible centre. No cover
pressure is required to hold the seal.
2.9
Check connections and ducts for air tight fit - Make
sure all clamps, bolts and connections are tight.
Check for holes in piping. Leaks here send dust
directly to the engine.
2.10
DO NOT reuse filters by cleaning and reinserting.
4. MAINTENANCE
C3779
C-653
Vacuator Valve
Cover Assembly
Inlet
Outlet
Primary
Filter
injury: DO NOT charge
a frozen battery because
it can explode and cause
WARNING
personal injury. Let the
60°F.(15.5°C.) before
putting on a charger.
To avoid personal injury,
lower the lift arms, shut off
the engine, raise the seat bar
and cycle the controls to
ensure they are locked. Then,
unlatch the seat belt and exit
WARNING
the loader. Do not enter or
exit with the engine running
unless as specified in this
manual or under specific
Air Cleaner
Hose
Fig 4.9A
Vacuator
Valve
Latch
Safety
Filter
(Optional)
Fig. 4.9B
To avoid personal
battery warm to
service and backhoe
operating procedures.
53
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