Invacare TDX SI Service Manual page 52

SECTION 6—SIDE FRAME
Installing the Walking Beam Assembly
1. Insert the 5/16 x 2.25-inch socket head shoulder screw into the walking beam assembly
facing toward the battery box.
2. Place the .31 x .69 nylon washer onto the 5/16 x 2.25-inch socket head shoulder screw.
3. Position the stability assist cylinder against the walking beam assembly in line with
the 5/16 x 2.25-inch socket head shoulder screw.
4. Install the 1/4-20 locknut securing the 5/16 x 2.25-inch socket head shoulder screw and
the stability assist cylinder to the walking beam.
5. Apply Super Lube Multi Purpose Grease w/PTFE (Teflon
grease to the walking beam mounting pin.
6. Install the motor with attached walking beam assembly and coved spacer onto the
walking beam mounting pin.
7. Using the 1/2-20 locknut and .505 x 1.124 x .100-inch washer, secure the motor with
attached walking beam assembly to the base frame. Torque to 13 ft-lbs ± 20%, then
back off 1/4 turn.
8. Connect the motor connector to the controller.
9. Install the drive wheel. Refer to Removing/Installing the Drive Wheel on page 35.
10. Remove the two 5-inch blocks under battery frame, gently lowering the wheelchair
frame to the ground.
11. Install the batteries. Refer to Replacing Batteries on page 69.
12. Using tie-wraps, reroute and secure the motor cable to the wheelchair frame. Refer to
Routing/Securing Motor Cables on page 82.
.31 x .69 Nylon
Washer
Bumper
5/16 x 2.25-inch
Socket Head
Shoulder Screw
.505 x 1.124 x .100
Washer
1/2-20 Locknut
FIGURE 6.1 Removing the Walking Beam Assembly
TDX® SI/SI-HD
Coved Spacer
Walking Beam Assembly
Motor
52
® ) or other silicon based
Stability Assist Cylinder
1/4-20 Locknut
Base Frame
Walking Beam Mounting Pin
Part No 1160845