New Holland TZ-Series - Changing Oils and Filters
(Pictures are of a
TZ18 / TZ22 / TZ25 , Concepts apply to other similar models) |
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Before performing any of the following operations, be sure that engine is
stopped and has been given adequate time to cool down
Changing the Engine Oil and Filter
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While engine is still somewhat
warm take out drain plug and drain oil
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Put plug back in
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Remove old oil filter (be
careful as oil will drain from filter)
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Apply a small amount of engine oil to the rubber seal of the new filter
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Tighten filter until it touches the mounting surface
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Tighten filter an additional ¾ turn by hand
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When a new filter is installed,
engine oil typically decreases a little. Ensure that oil does not leak
through the seal of the filter, then refill oil as needed.
Oil Capacity – 3.5 quarts (3.3
liters)
Change oil and filter after
first 50 hours and every 100 subsequent hours under normal conditions. If
operating under sever conditions change every 70 hours after the first
change.
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Changing the Primary Fuel
Filter
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Take off left rear tire assembly
and support the axle with a jack stand
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Drain fuel tank or pinch fuel
hose to keep fuel from flowing when hose is detached
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Take mounting clamp off of
filter
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Loosen clamps and detach fuel
filter from hose
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Replace old filter with a new
one, paying careful attention to make sure that directional arrow points
in direction of fuel movement; from the tank to the engine
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Reassemble fuel line assembly by
installing all hoses, clamps, and the mounting clamp
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Check for leakage
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Turn key to “ON” position for
several seconds to allow system to bleed out any air
Replace primary fuel filter
after every 300 hours of use
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Draining the Secondary Fuel
Filter
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Ensure that there is fuel in the
tank
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Close fuel shutoff valve (so
that the handle is pointing towards the “C”)
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Take fuel sediment bowl off
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Open fuel shutoff valve and
allow it to flow until only fuel is flowing from the filter base, no water
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Close shutoff valve
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Reattach fuel sediment bowl
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Open fuel shutoff valve
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Bleed fuel system
Drain secondary fuel filter
after every 100 hours of use
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Changing the Fuel Filter
(Diesel)
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Close fuel shutoff valve (so
that the handle is pointing towards the “C”)
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Take fuel sediment bowl off by
rotating the retaining nut
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Open fuel shutoff valve and
allow it to flow until only fuel is flowing from the filter base, no water
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Install new fuel element
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Check the two O rings for any
damage and replace them as needed
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Reattach the sediment bowl
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Open fuel shutoff valve (so that
the handle is pointing towards the “O”)
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Bleed fuel system
Replace fuel filter after the
first 50 hours of use, and then after every 200 subsequent hours
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Bleeding the Fuel System
(Diesel)
Fuel system needs to be bled for
the following reasons:
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System has been drained
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Filter has been replaced
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Tractor has run out of fuel
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Fuel lines have been
disconnected
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Injection pump has been replaced
To bleed fuel system:
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Ensure that there is fuel in the
tank
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Open shutoff valve (so that the
handle is pointing towards the “O”)
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Turn key to “ON”
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Push hand throttle to highest
speed position
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Turn engine over for a few
seconds
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Bleeding the Injector Lines
Injector lines need to be bled for
the following reasons:
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Tractor has run out of fuel
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Injectors have been replaced
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Injection pump has been removed
To bleed injector lines:
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Loosen injector line fittings at
the injectors
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Push hand throttle to highest
speed position
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Crank engine until air-free fuel
flows from each connection (do not crank engine continuously for more than
30 seconds)
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Tighten fittings to 18-22 ft-lbs
(24-29Nm) of torque
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Changing the Air Cleaner
Elements
Outer Element
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Remove air cleaner cover
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Pull outer element out of
assembly
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Clean loose dirt from element
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Check the end of the canister
for dirt
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Blow compressed air (under
30psi) from the inside of the filter to clean it
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Check inner diameter seals for
damage (if damaged, replace element)
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Push primary element back into
canister and reinstall
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Clamp air cleaner cover into
place
Outer element needs to be
cleaned after every 100 hours of use under normal conditions. Clean more
often if operating in excessively dusty conditions.
Outer element should be changed
after every 6 cleanings, or once a year
Inner Element
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Remove air cleaner cover and
outer element to expose the inner element
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Inspect the inner element by
placing a light inside the element. If little or no light shines through
the element it is partially clogged.
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Clean dirt from element and
canister
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Check seals for damage (if
damaged, replace element)
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Push element back into canister
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Push outer element over the top
of the inner element and clamp air cleaner cover into place
Inner element should be
serviced as often as the outer element
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Changing the Transmission, Rear
Axle, and Hydraulic System Oil
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Oil drains best when engine is
at operating temperature, but not hot
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Remove the filler plug and
transmission and rear axle drain plug to drain oil
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Put drain plug back
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Fill with Ambra Multi G134
hydraulic oil to correct level on dipstick
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Replace dipstick and filler plug
Oil capacity – 13.8 quarts (13
liters)
Change transmission, rear axle,
and hydraulic system oil after every 300 hours of use
During cold weather operation
New Holland F200 oil can be used as it flows easily in low temperatures and
can be used year round
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Changing the Hydrostatic
Transmission Filter
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Remove transmission fluid drain
plug and drain fluid
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Remove old filter
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Apply a small amount of
transmission oil to the rubber seal of the new filter
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Tighten filter until it touches the mounting surface
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Tighten filter an additional ¾ turn by hand
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Run engine and check for leaks
around the filter
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Refill oil as needed
Hydraulic filter should be
replaced after the first 50 hours of operation and then after every 300
subsequent hours
For operations at or below
0°F a special cold weather HST filter is available (part number
SBA340500980) |

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