Manitowoc Grove RT540E Service Maintenance Manual

BOOM RT540E SERVICE MANUAL
4-34 Published 4-20-2015, Control # 502-01
14. On the rear stowage bracket, remove the retainer pin
(Figure 4-97, 1) securing the sliding support in the
“OUT” position. Push in on the handle (Figure 4-97, 2) to
push the swingaway against the rear of the boom
15. Disengage the swingaway anchor fittings from the boom
nose attachment lugs. Install the retainer pin
(Figure 4-97, 1) securing the sliding support in the “IN”
position.
16. Slightly raise and/or lower the boom to help control the
boom extension.
17. Rig the boom nose and hoist cable as desired per
Section 4 of the RT535E Operator Manual.
18. Align the main and auxiliary hoists to the boom per
HOIST AND COUNTERWEIGHT (pg 5-1).
19. Install the hook block or headache ball.
20. Perform all adjustments and maintenance for the boom.
TENSIONING THE BOOM EXTEND AND
RETRACT CABLES
The boom extend and retract cables must be tensioned after
the boom has been rebuilt and any time the cables appear to
be loose.
Tools required:
- 15/16 in, 1-1/4 in, and 1-13/16 in crow’s feet
- torque wrench with toque capabilities of 72 in-lb to
360 in-lb
Do the following when tensioning the extend and retract
cables:
• When tightening or loosening the cables, secure the
cables using the flats at the front of the cable ends to
prevent the cables from twisting.
• To assure cables are adequately tensioned, torque
cables to at least the minimum torque values found in
Table 4-1.
• Ensure all tensioning nuts thread on and off of the
threaded studs by hand; weld spalls or thread damage
will adversely affect torque values.
Refer to the following procedures, Figure 4-98, and Table 4-1
when tensioning the extend and retract boom cables:
FIGURE 4-96
6814-4
2
1
6821-2
1
2
FIGURE 4-97
CAUTION
When adjusting cables, use two wrenches. Hold the “flat”
on the cable and turn the adjusting nut.
Do not allow the cables to twist. Cable failure could result.
WARNING
To prevent serious injury or death, always wear personal
protective equipment, including a hard hat, eye
protection, gloves and metatarsal boots.
CAUTION
Possible Cable Damage!
Use of an impact wrench to tighten the cable tensioning
nuts can cause the extend and retract cables to twist,
resulting in cable failure.
Do not use an impact wrench when tensioning the extend
and retract cable.
Reference Only

Manitowoc Grove RT540E Specifications

General

Brand	Manitowoc
Model	Grove RT540E
Category	Construction Equipment
Language	English