INTRODUCTION RT770E SERVICE MANUAL
1-2
Published 11/26/2014, Control # 447-05
information. A separate safety manual is also provided with
each crane. See the Operating Manual Section #2 for other
Safety related issues.
Customer Support
Manitowoc and our Dealer Network want to ensure your
satisfaction with our products and customer support. Your
local distributor is the best equipped and most
knowledgeable to assist you for parts, service and warranty
issues. They have the facilities, parts, factory trained
personnel, and the information to assist you in a timely
manner. We request that you first contact them for
assistance. If you feel you need factory assistance, please
ask the distributor’s service management to coordinate the
contact on your behalf.
General Crane Design
The Grove crane has been designed for maximum
performance with minimum maintenance. With proper care,
years of trouble-free service can be expected.
Constant improvement and engineering progress makes it
necessary that we reserve the right to make specification
and equipment changes without notice.
Specific Crane Description
The crane incorporates an all welded parallel box
construction steel frame, utilizing two drive steer axles. Axle
steering is accomplished utilizing hydraulic steer cylinders.
The engine is mounted at the rear of the crane carrier and
provides motive power through a six speed forward and
reverse transmission. The outriggers are single stage,
double box, telescopic beam type outriggers.
The superstructure is capable of 360 degree rotation in either
direction. All crane functions are controlled from the fully -
enclosed cab mounted on the superstructure. One boom is
available on the crane; a five section, full power,
synchronized, 36 to 138 ft (10.97 to 42.06 m) boom.
Additional reach is obtained by utilizing one of two optional
boom extensions; a 32 ft (9.75 m) fixed length offsettable
swingaway and a 32 to 56 ft (9.75 to 17.07 m) folding
offsettable swingaway.
Lifting Capacities (Load Chart)
Lift Capacities are listed on the Load Chart in the cab.
Basic Components
For basic Crane Component locations see Figure 1-2.
Axle Weight Distribution
For Axle Weight Distribution see Table 1-2.
Serial Number Location
Crane Serial Numbers are stamped on the left side of front
frame and on manual holder in cab.
Transportation and Lifting Data
Transportation and Lifting data Figure 1-1 are located on the
hydraulic tank on the right side of the crane.
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