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(5) Pull remaining rope up to upper equalizer sheave.
Partially insert sheave pin thru yoke side plate and
one washer. Place sheave in rope loop and insert
sheave with rope into sheave pocket. Slide pin thru
sheave and remaining washer into opposite side plate.
Secure pin by installing snap ring on each side of
pin.
(6) Insert upper block sheave pin thru side plate and one
washer. Place upper block sheaves in rope loop and
insert into sheave pocket removing pipe or rod as pin
is inserted. Make certain to install one washer on
each side of upper sheaves.
(7) Install key plates and bolts to secure pin.
(8) Partially insert lower block sheave pin into block side
plate opening and thru one washer removing pipe as
pin is inserted. Place outside sheave into rope loop
and insert sheave with rope into sheave pocket. Slide
pin into sheave. Repeat this procedure installing
sheaves and washers in both outside pockets of
bottom block. Center pocket of bottom block is not
used for sheaves.
(9) Replace key plates and bolts to secure sheave pin.
(10) Lubricate rope per Paragraph 4-3.
k. Reeving - 3 part double.
See Figure 5-8,
*
for diagram.
See Figure 9-15, for block parts.
With new rope installed on rope drum as described in
Paragraph 5-9.c, double reeved above, proceed with
rereeving following steps below:
(1) Form loops in the two ropes coming from rope drums.
Place these loops into bottom block pockets and slide
pipe or rod through sheave pin holes.
(2) Grasp remaining rope at midpoint loop and raise loop
and two ropes up to the hoist. Carefully form two
upper sheave loops and insert into upper sheave
pockets. Slide pipe or rod through sheave pin holes
to hold the two ropes.
(3) Pull the remaining rope down to the lower block. Insert
loop in between the two ropes already in lower block
by partially removing pipe while holding original ropes
in place. Note: This last loop must be rotated 90° as
it is placed between existing ropes into lower block;
refer to reeving diagram.
(4) Complete installation following steps 4 thru 9 in
Paragraph 5-9.h.
I. Reeving - 4 part double.
See Figure 5-8,
+
for diagram.
See Figure 9-15, for block parts.
With new rope installed on rope drum as described in
Paragraph 5-9.c, double reeved above, proceed with
rereeving following steps below:
(1) Form loop in each rope coming from rope drum. Place
these loops in sheave pockets in bottom block. Slide
pipe or rod thru sheave pin holes to hold the two
ropes.
(2) Grasp remaining rope at midpoint loop and raise loop
with two ropes up to the hoist. Carefully form two
upper sheave loops and insert into upper sheave
pockets. Slide pipe or rod thru upper sheave pin holes
to hold the two ropes.
(3) Pull loop and two ropes down to the bottom block.
Pass ropes across bottom block between ropes placed
there in step 1.
(4) Carefully remove pipe while holding first two ropes in
bottom block and insert second pair (step 3) of ropes
in bottom block between existing ropes.
(5) Pull remaining rope up to upper equalizer sheave
(center sheave). Remove pipe while holding first two
ropes in place far enough to insert last loop. Note:
This last loop must be rotated 90° as it is placed
between existing ropes into upper block. Refer to
reeving diagram.
(6) Complete installation following steps 6 thru 10 in
Paragraph 5-9.j.
m. Reeving - 8 part single.
See Figure 5-8,
,
for diagram.
See Figure 9-21, for block parts.
With new rope installed on drum as described in
Paragraph 5-9.c, single reeved above, proceed with
rereeving following steps below:
(1) Grasp cable at a point one-fourth (approx. 14'-0") the
distance hanging below the rope drum and form a
loop. Place one upper sheave in this loop. Slide upper
sheave with cable into sheave pocket; partially insert
sheave pin to hold sheave in place.
(2) Repeat (1) above and install second upper sheave
with rope.
(3) Repeat (1) above and install third upper sheave with
rope. Insert sheave pin and install key plates and
bolts to secure sheave pin.
(4) Thread rope end socket through limit switch weight;
then, pass it over partial sheave, inside hoist, and
insert in anchor fitting at hoist frame. Be certain power
is off before opening electrical compartment cover for
access to anchor fitting. With end fitting properly
seated in anchor, replace cotter pin in end of socket.
Four loops have now been formed for bottom block
sheaves.
(5) Place sheave in each loop. Install one sheave with
cable in bottom block; partially insert sheave pin to
hold sheave in place. Note: Be certain to install spacer
washers between sheaves, when shown on parts
illustration.
Summary of Contents for SHAW-BOX
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