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Figure 5-13. Upper Sheave Installed.
(Typical 3 and 5 Ton)
(3) Pass free end of rope thru bottom opening of hoist
between floating limit rod and motor, and insert rope in anchor
fitting at hoist frame. Be certain power is off before attempting
to place rope in anchor fitting. With end fitting properly seated
in anchor, replace bolt and lockwasher in end of socket. Two
loops have now been formed for bottom block sheaves.
Figure 5-14. Hoist Reeving — Four Part Single.
(4) Place one sheave in each loop. Install one sheave
with cable in bottom block, partially insert sheave pin to hold
sheave in place.
NOTE: Some blocks have spacer washers
between sheaves. Be certain that washers are installed
between sheaves, when shown on parts illustration. Install
second sheave with cable into bottom block. Slide sheave pin
through sheave. Replace key plates and bolts securing sheave
pin.
(5) Replace sheave guard.
(6) Lubricate cable per paragraph 4-3.
f. Reeving — 6 part single.
See Figure 5-15 for diagram.
See Figure 9-13 for block parts.
With new rope installed on the drum as described in paragraph
5-9c single reeved above, proceed with rereeving following
steps below:
(1) Grasp cable at a point one-third (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. Insert sheave pin and install key plates and bolts
to secure sheave pin.
Figure 5-15. Hoist Reeving — Six Part Single.
(3) Pass free end of rope thru bottom opening of hoist
between floating limit rod and motor and insert in rope anchor
fitting at hoist frame. Be certain power is off before attempting
to place rope in anchor fitting. With end fitting properly seated
in anchor, replace bolt and lockwasher in end of socket.
Three loops have now been formed for bottom block sheaves.
(4) 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 that washers are installed
between sheaves, as shown on parts illustration.
(5) Repeat step 4 for remaining bottom block sheaves.
Install sheave pin through sheaves. Replace key plates and
bolts securing sheave pin.
(6) Replace sheave guard.
(7) Lubricate cable per paragraph 4-3.
g. Reeving — 2 part double.
See Figure 5-17 for diagram.
See Figure 9-12 for block parts.
With new rope installed on the drum as described in paragraph
5-9c double reeved above, proceed with rereeving following
steps below:
(1) Form loops in the two ropes coming from rope drum.
Place these loops into bottom block pockets and slide pipe or
rod through sheave pin holes. Note position of ropes passing
limit stop bar.
(2) Partially insert upper block sheave pin in opening
and install one spacer washer. Raise remaining rope up to
hoist, form a loop and place upper sheave in this loop.
12205A
12204A