Assembly
1) The bender may be mounted to anything rigid enough not to twist or move
during the bending operation. To mount the bender, drill three 3/4" holes through
your mounting surface. You can use the frame holes as a guide. Place two 3/4"
washers on the top of each drilled hole. These washers will act as spacers to insure
that the bender pins, when installed, will be completely pass through the lower
frame holes. If you purchased the optional pedestal, position the washers over the
slots as shown in figure 1.
3) Remove the 1" frame pin. Locate the lower drive link. It will
have two 3/4" tapped holes in it and a recess milled out of its
bottom side's center. Place it on the lower frame with its inside 1"
hole over the lower frame's 1" center hole and its milled recess
facing down. Replace the 1" frame pin. Locate the hydraulic
cylinder's swivel block. Examining the swivel block you will see
the word 'TOP' stamped into it. Insert the swivel block into the
lower drive link's remaining 1" hole. Your Model 4 should now
look like figure 3.
2) Refer to figure 2. Using three 3/4" x 2" long flat head
bolts, three 3/4" nuts and three 3/4" washers, tightly
secure the frame to your mounting surface/pedestal. Using
three 1 1/2" diameter frame sleeves, three 1" diameter
x 8" long bolts, six 1" washers and three 1" nuts, install
the upper frame onto the lower frame. Lightly tighten the
bolts. Next install the 1" frame pin as shown in figure 2.
Using a small square placed against the 1" pin, move
the upper frame around until the frame pin is perfectly
vertical. Tighten all three 1" bolts.
4) Refer to figure 4 for this step. Remove the 1" frame pin. Locate the
upper drive link. Place it in the bender so that it aligns with the lower
drive link and engages the swivel block's upper shaft. Reinstall the 1"
frame pin. Place the two 1" diameter drive link sleeves between the two
drive links aligned with the 3/4" holes. Place a 3/4" washer onto the
3/4"-20 x 5" long bolt. Install it into the outside 3/4" sleeve and lightly
tighten. Place a 3/4" washer onto the 3/4"-20 x 4 1/2" long bolt. Install
it into the inside 3/4" sleeve and tighten securely. Remove the whole
drive link assembly and turn upside down. Look on the bottom side
of the lower link and verify that the inside 3/4" bolt threads do NOT
protrude out of the link. If it does, it will severely scratch the frame's
machined surface. Also the bender's links will not ride properly on the
lower frame. The only way this should be able to occur would be if the
longer 5" bolt was installed where the 4 1/2" bolt should be.
- 2 -
Figure 3
Figure 1
Figure 2 - Upper frame installed
Figure 4 - Drive links installed
Upper Frame Link
Lower Drive Link
Hydraulic
Swivel
Block
