Mec Speed Level 2684 ES, Руководство по обслуживанию и запасным частям

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“3084 Speed Level™ Sigma Lift” Service and Parts Manual October 2009
Page 1-3
H
Y D R A U L I C
S
Y S T E M
– G
E N E R A L
H
Y D R A U L I C
R
O A D M A P
H
YDRAULIC
R
ESERVOIR
Hydraulic fluid is held in the reservoir for delivery to the various components and then
returned to the reservoir. Returning hydraulic fluid is routed through a filter before
entering the reservoir. The reservoir also serves as the oil cooling device.
P
UMP
The pump delivers hydraulic fluid under pressure to the main hydraulic manifold.
H
YDRAULIC
M
ANIFOLD
The main manifold directs the hydraulic fluid to the hydraulically operated components
and returns fluid to the reservoir through the use of electronically operated solenoid
valves.
D
RIVE AND
B
RAKE
S
YSTEM
There are four (4) hydraulic, fixed-displacement gear wheel motors to provide power to
all four wheels [two (2) front and two (2) rear].
The two rear wheel motors have integral spring-held brakes. The brakes are released
by hydraulic pressure developed in the drive circuit during drive mode. A fixed orifice in
the brake circuit controls the deceleration rate and initiates a smooth stop.
F
LOATING
A
XLE
L
OCK
C
YLINDERS
Two (2) hydraulic cylinders control the floating axle on the front of the machine. When
platform is elevated, the cylinders lock into place to increase machine stability.
S
TEERING
S
YSTEM
Two (2) hydraulic cylinders control steering.
L
IFT
S
YSTEM
The machine is equipped with one (1) hydraulic lift cylinder.
T
ILT
S
YSTEM
The boom and platform tilts as a unit to provide a level work platform, regardless of
chassis level. One (1) hydraulic cylinder provides tilt from front to rear, and one (1)
hydraulic cylinder provides tilt from side to side.
O
PTIONAL
G
ENERATOR
S
YSTEM
If equipped, the generator is driven by a hydraulic motor which receives hydraulic fluid
directly from the pressure port of the pump.