62
62
Fig5.5 Pre-load adjustment
Fig5.5 Pre-load adjustment
6. Hydraulic system
6. Hydraulic system
Hydraulic
Hydraulic
oil pump
oil pump
Type
Type
Gear
Gear pump
pump
Displacement
Displacement
32
32 ml/r
ml/r
Control
Control
valve
valve
Ty
Type
pe
Two-p
Two-pool
ool type
type with
with relief
relief valve,
valve, flow
flow divider
divider and
and tilt
tilt valve
valve
Setting
Setting
pressure
pressure
17.5MPa
17.5MPa
Dividing
Dividing
pressure
pressure
7 MPa (2,2.5t) / 9 MPa (3t) / 10.5 Mpa (3.5t)
7 MPa (2,2.5t) / 9 MPa (3t) / 10.5 Mpa (3.5t)
Flow
Flow rate
rate
1
11L/min
1L/min (2-2.5t)
(2-2.5t)
13L/min
13L/min (3-3.5t)
(3-3.5t)
Lift
Lift
cylinder
cylinder
Ty
Type
pe
Single-action
Single-action piston
piston type,
type, with
with cut-off
cut-off valve
valve
Bore Dia.
Bore Dia.
φ
φ
50 (2,2.5t)
50 (2,2.5t)
φ
φ
56 (3,3.5t)
56 (3,3.5t)
Stroke
Stroke
1495mm
1495mm (Only
(Only for
for 3m
3m lift
lift height)
height)
Tilt
Tilt
cylinder
cylinder
Type
Type
Double-a
Double-action
ction piston
piston type
type
Bore Dia.
Bore Dia.
φ
φ
80×
80×
φ
φ
35 (mm)
35 (mm)
Stroke
127.5mm
Stroke
127.5mm
Hydraulic
Hydraulic oil
oil amount
amount
42L
42L
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