©
200508 3-3
Inspection and adjustment
PNEUMATIC GEARBOX CONTROL
ΛΦ45/55 series
3
3
3.3 INSPECTION, DOWNSHIFT PROTECTION VALVE
Inspection without vehicle speed signal
1. Make sure there is sufficient air pressure in
the brake system.
2. Position the gear lever in neutral.
3. Switch the vehicle ignition on.
4. Use the range group operating switch on the
ball of the gear lever to select the lower
range. The range group should now switch to
the lower range.
5. Switch the vehicle ignition off. The range
group should now automatically switch to the
higher range.
Inspection with the vehicle speed signal
1. Make sure there is sufficient air pressure in
the brake system.
2. Connect special tool DELSI
(DAF no. 0694941).
3. Position the gear lever in neutral.
4. Switch the vehicle ignition on.
5. Use the range group operating switch on the
ball of the gear lever to select the lower
range. The range group should now switch to
the lower range.
V300425
DAF LF Gearboxes and Clutch Service Manual
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