FASTENERS
See tables 2a and 2b for recommended torque values.
LOWER HOOK BLOCK PIN
When removing or installing the lower hook pin, care must
be taken so as to prevent damaging the pin and/or hook
block. These pins are tapered groove pins and as a result,
they can only be removed in one direction. To remove the
pin, a V-Block, drift and hammer (or slow acting press) are
required. The drift should be the same diameter as the pin
(5/16” diameter (7.94mm) for Models B, C & F and 3/8”
(9.52mm) diameter for Models J, L, LL, R & RR, and it
should be placed on the small end of the pin. The small end
of the pin is the end opposite the end on which the 3 grooves
are visible. Place the hook block in the V-Block and drive
the pin out using the drift and a hammer or slow acting
press.
To re-install the pin, the parts must be arranged the same as
they were when the pin was removed. To do this, use the
small end of the pin as a gage. First check the holes in the
hook block body and determine which hole is the largest.
Place the hook body in the V-Block with the larger hole on
top. Next, check each end of the hole in the lower hook
chain block and determine which end is the largest. Place
the chain in the slot of the chain block and insert the chain
block, with the large hole on top, into the hook block body.
Align the holes in the hook block body with the hole in the
chain block and insert the small end of the pin in the hole.
Push the pin in by hand until it stops and then use a hammer
or slow acting press to drive the pin into position so that the
end of the pin is flush with the outside surface of the hook
block body.
38
WARNING
Use of improper lower hook chain block pin as well as
improper installation of the pin can cause the pin to break
and allow the load to fall.
TOAVOIDINJURYANDPROPERTYDAMAGE:
Use only CM supplied, special high strength lower hook
chain block pin to attach the chain to the lower hook block
and install the pin as directed above.
!
Summary of Contents for Entertainment-Lodestar B
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