Manitowoc Grove RT530E-2 Service And Maintenance Manual

Published 4-22-15, Control # 556-00 4-1
RT530E-2 SERVICE MANUAL BOOM
GROVE
4
SECTION 4
BOOM
SECTION CONTENTS
Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-1
Theory Of Operation. . . . . . . . . . . . . . . . . . . . . . . . 4-1
Boom Extension . . . . . . . . . . . . . . . . . . . . . . . . . . 4-1
Boom Retraction. . . . . . . . . . . . . . . . . . . . . . . . . . 4-2
Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-6
Removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-6
Boom Disassembly. . . . . . . . . . . . . . . . . . . . . . . . . 4-6
Remove the Base Section . . . . . . . . . . . . . . . . . . 4-6
Disconnect Inner Mid Section . . . . . . . . . . . . . . . . 4-8
Remove the Inner Mid Section . . . . . . . . . . . . . . . 4-9
Remove Outer Mid Section. . . . . . . . . . . . . . . . . 4-10
Remove Telescope Cylinder. . . . . . . . . . . . . . . . 4-12
Boom Nose Sheaves . . . . . . . . . . . . . . . . . . . . . 4-13
Boom Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . 4-13
Install Telescope Cylinder. . . . . . . . . . . . . . . . . . 4-13
Install Outer Mid Section. . . . . . . . . . . . . . . . . . . 4-14
Install Inner Mid Section . . . . . . . . . . . . . . . . . . . 4-16
Connect Inner Mid Section . . . . . . . . . . . . . . . . . 4-17
Install Base Section . . . . . . . . . . . . . . . . . . . . . . 4-18
Boom Installation . . . . . . . . . . . . . . . . . . . . . . . . 4-19
Functional Check . . . . . . . . . . . . . . . . . . . . . . . . 4-19
Inspection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-19
Boom Alignment And Servicing . . . . . . . . . . . . . . 4-19
Boom Extension And Retraction Cable. . . . . . . . 4-20
Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-20
Inspection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-20
Extension Cable Adjustment . . . . . . . . . . . . . . . . 4-20
Retract Cable Adjustment . . . . . . . . . . . . . . . . . . 4-21
Telescope Circuit. . . . . . . . . . . . . . . . . . . . . . . . . . 4-21
Description. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-21
Theory Of Operation . . . . . . . . . . . . . . . . . . . . . . 4-21
Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-22
Lift Circuit. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-25
Description. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-25
Theory Of Operation . . . . . . . . . . . . . . . . . . . . . . 4-25
Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-25
Swingaway Boom Extension . . . . . . . . . . . . . . . . 4-29
Description. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-29
Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-29
Hook Block. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-34
Description. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-34
Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-34
DESCRIPTION
A four section 8.81 to 29.0 m (28.7 to 95.0 ft), synchronized
full power, cable extended boom is installed on this crane.
The boom is rectangular in design and utilizes one two-
stage double-acting, rod ported telescope cylinder. The
telescoping sections are supported on graphite impregnated
nylatron wear pads. Adjustable side wear pads prevent metal
to metal contact between the sections.
Boom assembly lift is provided by one lift cylinder. Boom
elevation is from -3 to 76 degrees.
An optional auxiliary boom nose (rooster sheave) is available
for the boom to simplify single part cable usage. The rooster
sheave is installed on the main boom nose and is secured by
pins that pass through the rooster sheave and bolt on
adapter plates on the main boom nose.
A 7.92 m (26 ft) offsetable or a 7.92 to 13.7 m (26 to 45 ft)
telescoping offsetable swingaway boom extension is
provided to obtain additional boom reach. The boom
extension mounts directly to the boom nose utilizing a four
point attachment. The boom extensions may be offset at 0 to
30 degrees. In addition, the swingaway can be stowed on the
right side of the boom base section.
THEORY OF OPERATION
Boom Extension
The outer rod end of the telescope cylinder is secured to the
boom base section, the inner rod end is secured to the inner
mid section, and the cylinder barrel is secured to the outer
mid section. The five fly section extension cables secured to
the inner mid section are routed around a five groove sheave
assembly at the barrel end of the telescope cylinder and are
secured at the opposite end to the fly section. The long
extend synchronizing cable is routed around two sheaves on
the top front of the inner mid, around a half sheave at the top
rear of the outer mid, and secured to the rear of the base
section. The four retraction cables are secured at the outside
front of the inner mid section, are routed around sheaves
Reference Only

Manitowoc Grove RT530E-2 Specifications

General

Brand	Manitowoc
Model	Grove RT530E-2
Category	Construction Equipment
Language	English