T M 5 - 3 8 1 0 - 3 0 5 - 1
10. Install toggle sheave brackets on top of boom
as
a.
b.
c.
d.
e.
f.
follows:
Remove two right side attaching links (4)
and toggle sheave brackets (5) from
storage location C (Figure 5-7) on right
front side of carrier frame.
Remove two sheave pins (6) from toggle
sheave brackets (5).
Attach two toggle sheave brackets (5) and
attaching links (4, Figure 5-8) to studs on
top of boom. The cable should lay over
two toggle sheave brackets (5), between
ears. Secure two attaching links (4) and
toggle sheave brackets (5) with two lynch
pins (7) tethered to attaching links (4).
Remove two sheaves (8) from tool box
and install on toggle sheave brackets (5)
with sheave pins (6). Make sure hex head
of sheave pin (6) is aligned with key stock
on toggle sheave bracket (5).
With anti-two block safety
feature not functional, do not
apply excessive line pull to cable.
This can cause serious damage to
cable, hook block, boom head
and winch.
Start engine. Hold on anti-two block BY-
PASS switch (Figure 5-9).
Maintain tension on cable and remove
wedge block from winch drum. Using
winch control lever, pull hook block and
plate up to and in contact with boom head.
Stop as soon as contact is made.
Figure 5-8. Installing Sheaves
Figure 5-9. Anti-Two Block Panel
5 -
7
