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Published 10-01-2020 Control # 699-00
GRT9165 SERVICE MANUAL
SWING SYSTEM
6
GROVE
SECTION 6
SWING SYSTEM
SECTION CONTENTS
Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-1
Theory of Operation . . . . . . . . . . . . . . . . . . . . . . . . 6-2
Swing Motor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-4
Swing Gearbox And Brake. . . . . . . . . . . . . . . . . . . 6-4
Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-6
Swing Bearing. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-9
Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-9
Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-9
Swing Bearing Bolts . . . . . . . . . . . . . . . . . . . . . . 6-10
Swivels. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-13
Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-13
Hydraulic Swivel . . . . . . . . . . . . . . . . . . . . . . . . . . 6-15
Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-15
Two Port Water Swivel . . . . . . . . . . . . . . . . . . . . . 6-16
Electrical Swivel . . . . . . . . . . . . . . . . . . . . . . . . . . 6-17
Swing Lock Pin . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-18
Slew Sensor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-19
DESCRIPTION
The purpose of the swing system is to allow the crane
superstructure to rotate atop the carrier frame. The
superstructure swing system provides full 360 degree
rotation in both directions and is equipped with free swing
c a pa b i l i t i e s . T h e t e r m
f r e e s w i n g
m e a n s th a t t h e
superstructure will swing freely after the Swing joystick is
released for 6 seconds or the Swing Brake Pedal is
depressed.
Swing is activated when the Swing Enable/Disable switch on
the left armrest is pressed once. When enabled, the Swing
Enable/Disable Indicator appears on the ODM. Use the
s w i n g c o n t r o l l e r j o y s t i c k i n t h e c a b t o r o ta t e t h e
superstructure. When the Swing joystick is actuated,
hydraulic pressure is routed to the Swing Motors to drive the
gearboxes in the appropriate direction. As the gearbox
rotates, the pinion gears mesh with the teeth on the swing
bearing and rotates the superstructure. The rotation speed is
variable up to the maximum rotation speed of 1.1 rpm.
Braking is accomplished by depressing a Swing Brake Pedal
which is a proportionate control valve that provides a
controlled braking of the swing motion. When active, press
the Swing Enable/Disable switch to disable rotating the
superstructure.
The swing system consists of a electric remote controller, a
directional control valve, two swing drives, the swing brake
assemblies, the brake pedal and power brake valve, and a
swing brake release solenoid valve.
The crane features a pin type swing lock as standard
equipment, and can feature an optional 360 degree positive
swing lock. The 360 degree positive swing lock meshes with
the swing gear teeth at any point of rotation. The pin type
swing lock can only be engaged when the boom is centered
over the front or rear of the carrier. Both swing locks are
operated from the cab.
Содержание Grove GRT9165
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