DAF 95XF. Manual — part 21
0
2
XF engine
TECHNICAL DATA
2-1
2. XF ENGINE
2.1 GENERAL
Types
XF 280 M
XF 315 M
XF 355 M
Version
Euro 2 (M), water-cooled, four-stroke diesel
engine with direct fuel injection, 4 valves per
cylinder and turbo-intercooling.
Number of cylinders
6
Bore x stroke
130 x 158 mm
Swept volume
12.58 l
Compression ratio
16.0 : 1
Firing order
1-5-3-6-2-4
Weight
approx. 1,049 kg
ENGINE TYPE
P (kW) at rpm
M (Nm) at rpm
XF 280 M
280 at 2000
1750 at 1100 - 1500
XF 315 M
315 at 2000
1900 at 1050 - 1500
XF 355 M
355 at 2000
2050 at 1000 - 1500
ENGINE TYPE
IDLING SPEED
rpm
MAX. NO LOAD SPEED
rpm
XF 280 M
525 - 575
approx. 2300
XF 315 M
525 - 575
approx. 2300
XF 355 M
525 - 575
approx. 2300
ǹ 200335
2
TECHNICAL DATA
XF engine
2-2
V-BELT TENSION
Belt tension, “AVX” raw-edge
1
V-belts in Newtons (N)
Multiple-V-belt
Single-V-belt
New V-belt
2
Setting tension
1200
600
Test tension
≥800
≥400
Worn V-belt
3
Minimum tension
500
250
Adjusting tension
700
350
(1)
Raw-edge V-belts can be recognised by the absence
of textile fabric in the rubber, with the exception of the
top of the belt edge, on the edges and the insides of
the belt (polished belt edges). Version: either toothed
or non-toothed.
(2)
After fitting the new V-belt, set the pre-tension to the
“setting tension” and after a trial run check whether the
pre-tension complies with the “test tension”. If the
tension reading is lower than the “test tension”
specified in the table, set the V-belt to the minimum
“test tension”.
(3)
If the V-belt tension is lower than the “minimum
tension”, set the belt to the “adjusting tension”.
M2121
0
ǹ 200335
0
2
XF engine
TECHNICAL DATA
2-3
Cylinder liner
Height above cylinder block
0.02 - 0.10 mm
Cylinder head
Minimum height after overhaul
119.50 mm
Test pressure using air (max. pressure)
1.5 bar
Valve clearance
Valve clearance (cold/hot)
inlet
0.50 mm
exhaust
0.50 mm
Valve opening
Valve opening at 1 mm valve clearance
0.3 - 0.7 mm
Axial play
Crankshaft axial play
0.06 - 0.32 mm
Camshaft axial play
0.10 - 0.55 mm
Idler gear axial play
0.05 - 0.25 mm
Gear backlash
Idler gear - crankshaft gear
0.02 - 0.21 mm
Idler gear - fuel-pump gear
0.02 - 0.22 mm
Idler gear - camshaft gear
0.02 - 0.21 mm
Camshaft gear - compressor gear
0.02 - 0.22 mm
Fuel pump gear - steering pump gear
0.02 - 0.19 mm
Oil pump idler gear - oil pump gear
0.02 - 0.20 mm
Crankshaft gear - oil pump idler gear
0.02 - 0.20 mm
Number of teeth, timing gears
Crankshaft gear
35
Idler gear
54
Fuel pump gear
70
Camshaft gear
70
Air compressor gear
27
Fan drive housing gear
29
Steering pump gear
18
Lubricating oil pump idler gear
34
Fan drive
Heat gear wheel for max. 30 min.
245
_C
Compression pressure
Differences in compression pressure
15%
Flywheel/starter ring gear
Axial variation, measured at a radial distance
of 210 mm
0.10 mm
Starter ring gear warm up
max. 185
_C
ǹ 200335
2
TECHNICAL DATA
XF engine
2-4
2.2 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.
Starter motor
Attachment nuts
73 Nm
(1)
Alternator
Alternator bracket attachment bolts
55 Nm
Alternator attachment bolts
50 Nm
Pulley attachment nut, version 55A
70 Nm
Pulley attachment nut, version 95A
70 Nm
Air compressor
M12 attachment bolts for compressor
110 Nm
M8 attachment bolts for bracket
30 Nm
M10 attachment bolts for bracket
60 Nm
Compressor gear flange bolt
120 Nm
M14 cylinder head threaded coupling
40 Nm
M26 cylinder head threaded coupling
90 Nm
Delivery pipe reducer valve
75 Nm
Suction and pressure line unions
90 Nm
Air-conditioning compressor
M12 attachment bolts for compressor bracket
110 Nm
M10 attachment bolts for compressor
60 Nm
(1)
Exhaust manifold
Fit gasket with steel side towards manifold
Sleeved attachment bolts
65 Nm
Heat shield attachment bolts
30 Nm
(1)
0
ǹ 200335
Нет комментариевНе стесняйтесь поделиться с нами вашим ценным мнением.
Текст