Published 08-25-09, Control # 077-04 4-45
RT9130E SERVICE MANUAL BOOM
10. At the fly section sheave end (Detail D) (Figure 4-7),
swivel the catch hook to engage the latch securing the
base extension to fly section.
11. Ensure the attach pins and retaining clips attaching the
7m section (fly) to the guide rail bracket (Detail B)
(Figure 4-7) are in place.
12. Ensure the pin and retaining pin attaching the fly section
to the boom base section rear support bracket (Detail C)
(Figure 4-7) are in place.
13. At the guide rail, pull downwards against the spring force
of the eye bolt and fold in the guide rail and release the
eye bolt to lock the guide rail in the stowed position
(Detail B) (Figure 4-7).
14. Rig the boom nose and hoist cable as desired and
operate the crane using normal operating procedures.
Connecting and Disconnecting the
Hydraulic Boom Extension
Connecting
When working with the main boom for longer periods of time,
the hydraulic connection between the hose drum and the
main boom should be disconnected. This prevents
unnecessary reeling and unreeling of the hose.
Establish a Hydraulic Connection Between the Lattice
Extension and the Main Boom
If the hoses are stowed on the holder on the boom base
section, release the hose drum lock pin and pull the hydraulic
hoses toward the boom nose. Anchor the hydraulic
couplings at the holder on the boom nose. Guide the
hydraulic hoses through the guide rollers.
1. Unwind the hoses on the lattice extension.
2. Remove the dust caps from the couplings on the lattice
extension and the drum hoses.
3. Connect the hose drum hoses to the hoses on the lattice
extension. Do not detach the drum hoses from the
holder on the boom nose.
Establish an Electrical Connection Between the
Lattice Extension and the Main Boom
1. Remove the 17 pin bypass (Figure 4-8) plug from the
electrical junction box on the boom nose.
2. Unwind the electrical cable from the lattice extension.
3. Disconnect the cable from the dummy plug on the boom
extension adapter.
4. Connect the boom extension cable to the boom nose
junction box (Figure 4-8).
Establish an Electrical Connection Between the
Lattice Extension and Anti-Two Block Switch
NOTE: The anti-two block switch supplied with the boom
extension is used for operation of the 11 m and 18
m sections. The junction box connection for the
section that is not in use must be overridden with a
bypass plug.
1. Install the anti-two block switch on the appropriate pin
near the nose sheave of the section being used. Secure
the switch to the boom extension with a retaining pin.
2. Remove the bypass plug and connect the wire for the
anti-two block switch to the junction box located near the
nose sheave.
Disconnecting
Disconnect the Electrical Connection Between the
Lattice Extension and the Main Boom
1. Disconnect the boom extension cable from the boom
nose junction box (Figure 4-8).
2. Wind the cable onto the boom extension for storage.
3. Connect the cable to the dummy plug on the boom
extension adapter.
4. Install the 17 pin bypass plug into the open connector on
the boom nose junction box (Figure 4-8).
Disconnect the Hydraulic Connection Between the
Lattice Extension and the Main Boom
DANGER
If the hose couplings are detached from the boom after
the hose drum lock pin has been released, do not release
the hose couplings until they have been attached to the
boom. If the hose couplings are released after being
detached from the boom, the hoses will spring back
uncontrollably due to the spring force in the hose drum.
DANGER
If the hose couplings are detached from the boom after
the hose drum lock pin has been released, do not release
the hose couplings until they have been attached to the
boom. If the hose couplings are released after being
detached from the boom, the hoses will spring back
uncontrollably due to the spring force in the hose drum.
To Next Page
Loading...
