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IM77137 rev 10.10.19
7/12
A M P R E S E A R C H P O W E R S T E P
T M
– T O Y O TA T U N D R A
Install 5 Carriage Bolts #13 into rail. Align bolts with bracket and use supplied Flange nuts #18
to attach Rail to brackets. Do not tighten to allow for adjustment. Insert Threaded nut plate onto
rail pocket. Light brackets will need to go rearward of Front linkage bracket and forward of Rear
linkage bracket. Leave loose to allow for adjustment.
2
1
11
Slide rail into position as show. Torque bolts
from step 3-5 to 16ft-lbs. Next torque flange
nuts that attach rail to brackets to 16ft-lbs.
On Driver side mount Front drive linkage and
rear idler linkage. Thread supplied Conical
washer bolts #10 into linkages. Install provided
spacer #19 and M6 flange bolt #17 into upper
mount as shown on both Drive and Idler
linkages. Do not tighten.
Slide mounting T-nut into position. Center Board
in rail pocket. Tighten fasteners to 10ft-lb.
12
Using a 13 mm socket torque linkage bolts to
16ft-lbs. Next use a 10mm socket torque linkage
spacer bolt #19 to 8 ft-lbs. Once linkages are
tight cycle board to verify steps deploy under
own weight and clear rail endcaps.
23
22
21
6
58
4
5
57
