DAF 95XF. Manual — part 700
7
TECHNICAL DATA
Steering gear, general
1-2
LUK VT77 steering pump
Steering pump output at a steering oil
temperature of 50
°C and a pressure of 50 bar
DAF No.
Output l/min.
Min.
Max.
123 9411
14.4
19.2
125 0867
22.5
30.0
126 0574
22.5
30.0
129 1226
18.0
24.0
129 1227
14.4
19.2
129 1228
22.5
30.0
129 1229
18.0
24.0
129 1230
22.5
30.0
130 1265
17.1
22.8
135 3356
22.5
30.0
135 3380
22.5
30.0
137 5507
17.1
22.8
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7
Steering box
TECHNICAL DATA
2-1
2. STEERING BOX
2.1 GENERAL
Steering box
Design
automatic bleeding system, adjustable
wheel-deflection limiting valves and
pressure-limiting valve.
Type:
-
TAS 75 and THP 80
single-circuit steering box. Application: front
axle 150N/152N.
-
TAS 85
single-circuit steering box. Application: front
axle 172N/182N/186N and with multiple
steerable axles (either or not in combination
with a slave cylinder).
-
TAS 86
dual-circuit steering box without slave
cylinder. Application: vehicles requiring an
emergency steering gear.
-
TAS 87
dual-circuit steering box with slave cylinder.
Application: vehicles requiring an emergency
steering gear and fitted with a slave cylinder.
The gear ratio depends on the vehicle type.
Wheel-deflection limiting valve
Final limiting pressure at a steering oil
temperature of 50
_C and an engine speed of
1200 - 1400 rpm
maximum 80 bar
Pressure-limiting valve opening pressure
(peak pressures)
200 bar
Internal steering box resistance
Internal resistance outside the pressure point
(slip moment)
250 Ncm max.
Internal resistance increase in the pressure
point
80 - 120 Ncm
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7
TECHNICAL DATA
Steering box
2-2
Pipe connections
Single-circuit steering box
Connection P
delivery pipe
Connection R
return pipe
Steering box connection, top
slave cylinder, front
(1)
Steering box connection, rear
slave cylinder, rear
(1)
Dual-circuit steering box
Connection P1
main steering pump delivery pipe
Connection P2
emergency steering pump delivery pipe
Connection R1
return pipe, circuit 1
Connection R2
return pipe, circuit 2
Connection C1
slave cylinder, front
(1)
Connection C2
slave cylinder, rear
(1)
(1)
Viewed as if in driving direction
A.
Output indicator circuit 1
B.
Output indicator circuit 2
A
B
S7 00 441
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7
Steering box
TECHNICAL DATA
2-3
2.2 TIGHTENING TORQUES
The tightening torques stated in this section are
different from the standard tightening torques
included in the overview of standard tightening
torques. Any other threaded connections that
are not specified 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.
K
G
E
B
I
L
S7 00 178
A
C
D
F
H
K
A.
Steering wheel nut
65 Nm
B.
Bolts for attaching the steering bracket
to the chassis
260 Nm + 60
° angular displacement
C.
Bolts for attaching the steering box to
the steering bracket
520 + 90
° angular displacement
(1)
D.
Pitman arm nut
900 Nm
200424
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