DAF 95XF. Manual — part 24
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XF engine lubrication system
TECHNICAL DATA
4-1
4. XF ENGINE LUBRICATION SYSTEM
4.1 GENERAL
Oil pressure
Oil pressure at engine idling speed
1 bar (warm engine)
Oil pressure at full-load engine speed
3,5 - 4.5 bar
Oil filter
Type
disposable filter
Quantity
1
Installation in the oil circuit
full flow
Opening pressure of bypass valve at a
pressure difference of
2,5
0.3 bar
Oil cooler
Opening pressure of bypass valve at a
pressure difference of
2 bar
Oil section test pressure
6 bar
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TECHNICAL DATA
XF engine lubrication system
4-2
4.2 TIGHTENING TORQUES
The tightening torques stated in this section are
different from the standard tightening torques
stated in the overview of the standard tightening
torques. The other threaded connections which
are not stated must therefore be tightened to the
tightening torque stated in the overview of
standard tightening torques.
When attachment bolts and nuts are to be
replaced, it is important that they are of exactly
the same length and property class as the ones
removed unless stated otherwise.
Fuel filter
Attachment bolts, fuel filter/water pipe
connection
40 Nm
Fuel pump filter head banjo bolt
40 Nm
Lubricating oil strip/rocker seats
Attachment bolts
110 Nm
Oil sump
Clamp attachment bolts
25 Nm
Oil drain plug
60 Nm
Oil pump
Attachment bolts for oil pump housing sections
30 Nm
Attachment bolts connecting oil pump to main
bearing cap
60 Nm
(1)
Delivery pipe attachment bolts
30 Nm
(1)
Idler gear central bolt
60 Nm
(1)
Strainer
Bracket attachment bolts
30 Nm
(1)
Lubricating oil filter
Lubricating oil filter housing attachment bolts
50 Nm
(2)
Oil filter
45 Nm
Coupling in lubricating oil filter head
60 Nm
(3)
Bypass pressure regulator
Plug
80 Nm
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XF engine lubrication system
TECHNICAL DATA
4-3
Oil cooler
Attachment bolts connecting oil cooler to
cylinder block
50 Nm
Coolant supply pipe union
90 Nm
Plug, adjustable banjo connection
90 Nm
Banjo bolt, adjustable banjo connection
90 Nm
Centrifugal oil filter
Central bolt
20 Nm
Oil discharge pipe union
50 Nm
Dip stick
Threaded coupling
60 Nm
(1)
Secure with Loctite 243
(2)
Secure with Loctite 572
(3)
Secure with Loctite 2701
Oil sprayer
Banjo bolt M14 for oil sprayer with locking
plate
30 Nm
M10 banjo bolt for oil sprayer
30 Nm
Main bearing caps
Main bearing cap attachment bolts
150 Nm + 120
_ angular displacement
(1)
Big-end bearing caps
Attachment bolts, big-end bearing caps
1
st
phase,
sequence 1-2-3-4
35 Nm
2
nd
phase,
sequence 4-3-2-1
45 Nm
3
rd
phase,
sequence 1-2-3-4
60
_ angular
displacement
(2)
1
4
3
2
M200661
(1)
Apply a drop of oil to thread and contact surface.
(2)
Connecting rod bolts are to be used once and
tightened as instructed.
When fitting the connecting rod in the engine, apply a
drop of oil to the threads and contact surfaces of the
connecting rod bolts.
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TECHNICAL DATA
XF engine lubrication system
4-4
4.3 FILLING CAPACITIES
Lubrication system
Total capacity, including oil cooler and oil filter
approx. 32 litres
Oil sump capacity, maximum level
approx. 25 litres
Oil sump capacity, minimum level
approx. 17 litres
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