Page 41
Pump Pressure (p
dyn
)
Voith Turbo I Aftersales Service Manual Voith Retarder VR 115 E I Diagnosis and Troubleshooting
V
o
it
h T
u
rb
o
I 15
3.00
009
710
I ar
rt
d I 2
0
05
-1
1
©
200
5
1. Unscrew screw plug (103) and remove sealing ring
(104).
2. Connect pressure sensor (50/36) to retarder
housing (100) with sealing ring (104).
3. Connect the retarder tester (99/30) (see Test set-
up diagram Page 39 and operating instructions of
the retarder tester):
-
Connect cable 1 (99/31) to proportional valve
(3700).
-
Connect cable 2 (99/32) to pressure sensor (50/
36) and (9000).
-
Connect cable 3 (99/33) to oil temperature
sensors (5200/1) and coolant (5200/2).
-
Connect cable 4 (99/34) to the vehicle voltage
supply/PC interface.
4. Select the retarder type at the retarder tester.
5. Switch on the vehicle ignition and start the engine.
6. Check pump pressure at engine speed 1000 min
-1
(see operating instructions of the retarder tester).
7. Compare the measured pump pressure to the
minimum dynamic pump pressure in accordance
with the specifications of the retarder tester.
8. Disconnect the retarder tester (99/30) and all
cables.
9. Disconnect the pressure sensor (50/36) and
remove the sealing ring (104).
10.Lubricate the new sealing ring (104) with silicone-
free, non-corrosive grease.
11.Screw in the screw plug (103) with sealing ring
(104) and tighten to 20 Nm.
12.Remove prop shaft at the retarder from the flanges
(see specifications of vehicle manufacturer).
103
104
28026
50/36
104
28027
Ö
Shift in direct gear (ratio 1:1). The engine speed
1,000 r.p.m. then corresponds to the prop shaft
speed of 1,000 r.p.m..
NOTE
If the setpoint of the constant-air pressure (p
y
) is
reached, but the pump pressure (p
dyn
) is
undershot, the retarder has an internal defect.
Ö
Contact Voith.
NOTE
