Grove Published 3-25-2020, Control # 595-10 4-3
GRT8100 OPERATOR MANUAL SET-UP AND INSTALLATION
INSTALLING CABLE ON HOIST
Refer to Figure 4-3.
NOTE: Straighten cable before installing on hoist drum.
1. Place cable (1) over boom nose sheave and route to
hoist drum (2).
2. Rotate hoist drum so cable slot located on left side of
drum is easily accessible.
3. Insert cable through slot (3) and wedge block (4). Loop
around anchor wedge (6) and route back through wedge
block to clamp (5). Ensure cable is routed over guide in
side of drum. End of cable should extend approximately
50 mm (2 in) beyond clamp. Tighten clamp.
4. Adjust cable so clamp side is snug against guide.
Position anchor wedge in wedge block. Pull firmly on
inside hoist side of cable to secure the wedge.
5. If wedge does not seat securely in slot, carefully tap
cable and top of wedge (7) with a mallet.
6. Slowly rotate drum and evenly wind first layer of cable.
7. Install remainder of cable as required.
ANTI-TWO-BLOCK (A2B) SWITCH
If a hoist rope has been reeved and two A2B switches are
installed, the unused A2B switch must be locked (disabled)
to allow all crane operations.
Locking
1. Remove A2B weight.
2. (A) Remove cap (1) from switch.
3. Pull lanyard (2) down.
4. (B) Secure lanyard (2) in this position using cap (1). A2B
switch is locked (disabled).
CAUTION
If cable is wound from storage drum, rotate reel in same
direction as hoist.
FIGURE 4-3
1
8627-1
8627
2
1
1
3
4
5
6
7
4
4
CAUTION
If the A2B switch is locked (disabled), the hook block
could hit the main boom head or extension, resulting in
damage to the hook block, main boom head or extension,
and hoist rope. Never lock an A2B switch with a switch
weight attached.
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