Grove Published 07-06-2017, Control # 406-03 5-5
CD5520/YB5520 OPERATOR MANUAL ATTACHMENTS
NOTE: It may be necessary to remove and stow the
retention pin for later application.
9. Raise the hook and ball. Check that the wire rope is
engaged in all the sheaves in the boom, hoist block and
hoist drum.
HOIST BLOCK
Removing The Hoist Block
1. Lower the hoist block to the ground to place slack in the
wire rope.
2. Remove the pin (Figure 5-9) securing the rope wedge
socket to the boom head. Remove the wire rope dead
end socket.
NOTE: When removing the hoist block to install the hook
and ball assembly, the wire rope dead end
assembly does not have to be disassembled.
3. Remove the three pins as indicated in Figure 5-10.
4. Pull the wire rope and dead end through the block.
5. Install the three pins.
Installing the Hook Block
1. Remove the three pins and hook assembly from the
hook block assembly. See Figure 5-10.
2. Thread the wire rope through the hook block so it is
under the hook block sheave.
3. Install the hook assembly and three pins to the hook
block assembly.
4. Attach the wire rope wedge assembly to boom head.
5. Lift the hook block off of the ground. Be sure the wire
rope is engaged in the sheave grooves in both the boom
head and hook block.
BOOM EXTENSION
Attaching the Boom Extension
To use the boom extension it must be positioned and
attached to the main boom. The boom extension can be
attached as follows:
1. Locate the crane on level ground. If this is not possible,
use the outriggers to level the crane.
NOTE: The crane must be level to attach the boom
extension. If the crane is not level, there is a
CAUTION
Ensure that the hook assembly’s safety latch
(Figure 5-10) does not get damaged.
FIGURE 5-9
p0531
Typical Wire Rope Wedge
Socket Pin
FIGURE 5-10
p0529 Remove Pins
Hook Assembly
Safety Latch
Reference Only
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