T-code Valid from serial number
403-414, 669-671, 716-718 713962-
Date Order number
2005-06-01 218920-040
13- 6 Service Manual REFLEX RR B/E, RR B/E CC © BT Europe AB
Mechanical drive gear unit – 2550
Replacing the drive motor/drive transmission
13.3.3 Dismantling the drive transmission
• Unscrew the four screws holding the support and lift it out of the way.
• Hoist the machine using a pneumatic jack and put it on blocks.
• If the truck is equipped with a steering wheel indicator: Disconnect
the indicator for centred steering (8) and steering wheel direction (9).
• Disconnect the contact to the steering motor and loosen the contact
(10) from its bracket on the tank plate.
• Unscrew the screws (11) for the steering motor (12) and remove it
from the drive transmission.
• Remove the bolts (14) holding the transmission cowl (15) on the
chassis.
• Remove the transmission (17) with its cowl (15) from the truck.
• Unscrew the drive wheel.
• Remove the bolts (18) holding the drive transmission (17) to its cowl
(15) and lift off the cowl (15).
• Dismantling the steering bearing (16): Unscrew the hexagon
socket bolts (19) and remove the steering bearing (16) from the
transmission (17).
13.3.4 Assembling the transmission
• Assembling the steering bearing (16): Fit the steering bearing
(16) using the 15 hexagon socket bolts (19) on the drive transmis
-
sion (17) with LOCTITE 242, to a torque of 25 Nm.
• Always replace the lift valve (20) when the steering bearing has
been removed or when fitting a new bearing.
• Attach the new drive transmission (17) to the cowl (15). Oil the bolts
(18) and tighten them to a torque of 80 Nm.
• Secure the drive wheel, torque 130 Nm.
• Insert the drive transmission (17) into position on the truck.
• Fasten the drive transmission (17) with its cowl (15) to the chassis
with the 6 bolts (14), torque 222 Nm.
• Fit new O-rings and, if necessary, new plastic seals on the steering
motor.
• Fit the steering motor (12) on the drive transmission cowl; the tight-
ening torque on the screws (11) should be 40 Nm.
• Connect the contacts to the steering motor (10).
• If the truck is equipped with a steering wheel indicator: Turn the
steering wheel until an edge is visible through the hole for the cen
-
tred steering indicator (8).
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