Grove Published 7-23-2020, Control # 668-02 5-79
GRT9165 OPERATOR MANUAL SET-UP AND INSTALLATION
4. Set up timbers or other suitable structure for the
extended boom nose. The boom extension nose be
lowered on the timbers or structure.
5. Lower the main boom until the boom extension nose
touches the timbers or structure.
6. Remove the offset pin (1, Figure 5-65). Lower the boom
extension head on the timbers or structure as necessary
to make it easier to remove the pin.
7. Insert the offset pin in the location of the angle required.
8. Raise the main boom slowly until the extension head no
longer touches the timbers or structure.
9. Fully retract the main boom. While doing so, raise the
boom as necessary so the head of the boom extension
does not touch the ground.
10. Raise the boom extension mast sheave assemblies.
11. Reeve the hoist rope. For more information, see Hoist
Rope Reeving, page 5-34.
Setting the (Optional) Hydraulic Boom
Extension Offset
Use the following procedure to set the offset for the hydraulic
boom extension. The hydraulic boom extension offset range
is 0° to 50°.
1. In the operator cab, enable the Luffing Boom Extension
Enable/Disable Switch. For more information about the
Luffing Boom Extension Enable/Disable Switch, see
Operator Seat and Armrest Controls (Dual Axis), page
3-24.
2. Using the right joystick, raise or lower the hydraulic
(luffing) boom extension. For more information about the
Boom Lift – Main Hoist – Telescope – Luffing Boom
Extension Controller (Dual Axis), see Operator Seat and
Armrest Controls (Dual Axis), page 3-24.
Anti-Two Block Switch on the Boom
Extension
Use the following procedures to install and remove the
anti-two block (A2B) switch from the boom extension base
and fly sections.
Boom Extension Base Section
Use the following procedures to install and remove the
anti-two block switch from the end of the boom extension
base section. The anti-two block switch is installed on the
right side of the nose of the boom extension base section.
The A2B electrical cable is installed on the left side of the
boom extension base section.
Installing the Anti-two Block Switch on the Boom
Extension Base
1. Install the anti-two block switch (1, Figure 5-66) on
bracket (2) on the right side of the boom extension base
section. Secure switch with retaining clip (3).
2. Remove the protective cap from the electrical socket (4).
Connect the electrical plug in socket (4) on left side of
the boom extension base section.
3. Be sure the anti-two block wire does not interfere with
operation. Secure excess wire as necessary.
4. Remove safety pin (5). Install the anti-two block weight
(6) around the hoist rope. Secure with safety pin (5).
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