SUNWARD SWDM240B - Page 213

SWDM240B OPERATION & MAINTENANCE MANUAL
212
Step 1: Cushion the 1
st
section with crosstie on the
ground, assemble the 2
nd
section through the 1
st
section
center, and then assemble the 3
rd
section through 2
nd
section.
Step 2: Cushion the 4
th
section with
crosstie on the ground, pull the spring
and disc through the 4
th
section
successively.
Step 3: Assemble the
4
th
section through the
1
st
section, 2
nd
section
and 3
rd
section, then
install positioning
ring, clamp plate and
square head pin shaft
successively on the 4
th
section.
Square head pin shaft
Kelly assembly
Clamp plate
Front three sections
Front three
sections
Note
The winch should be used to assemble
Kelly.
The 1
st
section
The 2
nd
section
The 3
nd
section
Kelly assembly process
The 4
th
section
Spring
Disc