Manitowoc Grove RT540E Service Maintenance Manual

INTRODUCTION RT540E SERVICE MANUAL
1-10 Published 4-20-2015, Control # 502-01
4. Hydraulic hose assemblies operating in a temperature
climate zone “C” (Table 1-2) are recommended to be
replaced after 8000 hours of service life.
5. Hydraulic hose assemblies operating in climate zones
“A” and “B” (Table 1-2) with high ambient temperatures,
could see hose service life reduced by 40 to 50%,
therefore, it is recommended to replace these hoses
after 4000 to 5000 hours of service life.
6. Hydraulic hose assemblies operating in climate zones
“D” and “E” (Table 1-2) cold climates should expect a
degrade of mechanical properties such as elasticity,
therefore, it is recommended these hoses be inspected
and addressed accordingly.
Electrical System
Connectors, Harnesses, Wires, and
Connectors
Visually inspect all electrical harnesses, cables, and
connectors every month or 250 hours for the following:
• Damaged, cut, blistered, or cracked insulation.
• Exposed bare wires.
• Kinked or crushed wires and cables.
• Cracked or corroded connectors, battery terminals, and
ground connections.
If any the above conditions exist, evaluate and replace as
necessary.
The climate in which the crane operates affects the service
life of the electrical components. The climate zones are
defined in (Table 1-2). Recommended replacement of
harness and cables is as follows:
• Climate zone C after 10,000 hours of service.
• Climate zones A and C with high ambient temperatures
and duty cycles after 8000 hours of service.
• Climate zones D and E after 10,000 hours of service.
• Salt water conditions after 8,000 hours of service.
Fatigue of Welded Structures
Experience has shown that highly stressed welded
structures when repeatedly subjected to varying stresses
caused by twisting, shock, bending, and intentional and/or
unintentional overloads, often become subject to weld
cracking which may be attributed to fatigue of the welded
joint. This condition is not uncommon in construction
equipment.
Equipment should be periodically inspected for evidence of
weld fatigue. The frequency of these inspections should be
commensurate with the age of the equipment, the severity of
the application, and the experience of the operators and
maintenance personnel.The following are known high stress
areas applicable to Manitowoc/Grove machines, and a visual
inspection of these areas should be made part of an owner’s
planned preventive maintenance program:
1. Power Telescope Boom - wear pad retaining structures,
hydraulic cylinder attaching points, boom pivot shaft
retaining structures.
2. Outrigger pads, beams, boxes and attachment
structures.
3. Main frames - generally in the area of doubler plates and
crossmembers; at the junction of front and rear frame
members on truck cranes.
4. Turntable bearing connection (where bearing is welded
to the crane superstructure or chassis).
5. Counterweight support structures.
6. Chassis axle and suspension mounting structures.
7. Hydraulic cylinder end connections.
The above is provided only as a guide, and your inspection
plan should not be limited to the areas listed. A thorough
visual inspection of all weldments is good practice.
Anyone requiring more detailed inspection instructions and/
or repair procedures may request them by contacting the
local Manitowoc/Grove distributor.
Loctite
Always follow the directions on the Loctite container as not
all Loctite types are suitable for all applications.Various types
of Loctite are specified throughout the Service Manual.The
following types of Loctite brand adhesives are available from
the Parts Department of the local Manitowoc/Grove
distributor.
Application of Medium Strength Loctite
NOTE: The fastener may be re-used; the adhesive may be
re-applied over cured adhesive residue.
The following procedure covers the proper application and
curing method for medium strength Loctite adhesive/sealant
(Loctite #243) and primer (Locquic Primer T7471).
Primer Application
NOTE: It is not necessary to bathe the threads in primer.
DANGER
Loctite type adhesives contain chemicals that may be
harmful if misused. Read and follow the instructions on
the container.
Reference Only

Manitowoc Grove RT540E Specifications

General

Brand	Manitowoc
Model	Grove RT540E
Category	Construction Equipment
Language	English