Rottler F103 Series, Installation Manual, Operation And Maintenance Manual

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Section 5 Operating Instructions F103/4/5A Manual
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5-5
Surfacing Application
NOTE: The block must have the main bearing caps in place and torqued.
Care must be taken to assure the contact edges of the locator bar are near the cap split line. A pair of 3/8”
and 1/2” spacers are provided for blocks with large main bearing bores, to enable the bar to locate near
the main bearing split line. (See figure 2)
V-blocks:
(blocks with main bearing center lines no more than 1/2” higher than the pan rail plane) are mounted with
the 502-3-8B V-block frame in place. Select the 90-degree option placement of the frame to suit block
length, or main bearing caps will interfere with frame. Rotate frame 90 degrees by moving its shoulder
screws to alternate set of holes.
Y-Blocks:
(blocks with main bearing center lines 2-3/8” to 3-1/2” higher than the pan rail plane) are mounted directly
on the fixture. Some Y-blocks (GM 60 degree) have too narrow pan rails and some have too low main
bearing location which will require the use of the 502-1-15C precision 1-1/4” x 3” parallel set to raise and
or support the block. Use the shoulder screw from the V-block frame and hook the parallels over the back
of the V-fixture.
This fixture may be easily repositioned on the support parallels (without a block in place) to shift from the
60 degree support surface to the 90 degree support surface or vice versa.