Section 7. Component Procedures
Toyota Orderpicker Model
7BPUE 15 Service Manual
Bleeding the Hydraulic System
H
y
draulic Components
Bleeding the Hydraulic
4.
Repeat cylinder. the steps for the other side
System
5.
Connect battery and turn key switch ON.
6. Lower operator platform all way down to
floor.
7. Fully lift and lower platform several times.
8.
Clean up any spilled hydraulic fluid.
9.
Check hydraulic reservoir level and fill as
necessary. See
"
Lubrication Specification
Chart
"
on page
A
-
2.
Center Cylinder
If the truck has a three
-
stage mast, it will have
a
center cylinder. To bleed the center cylinder:
1.
Elevate the operator's platform enough to
extend the center cylinder approx.
3
in.
(76 mm).
Figure
7
-
95.
Side C
y
linder Bleed Screw
2.
Loosen, do
not
remove, the bleed screw.
(Use
3
mm Allen wrench for center
You must bleed the hydraulic system to remove
cylinder.) Hold rag beneath the bleed screw
any trapped air whenever you:
to keep hydraulic fluid from spraying out.
Change a hydraulic line
Disconnect a hydraulic fitting
-
-
.
-
3.
When only hydraulic fluid starts flowing
from the cylinder, securely tighten the
Remove a hydraulic cylinder bleed screw.
Remove the hydraulic pump
Notice that the load is bouncing
Side Cylinder
1.
Extend the cylinder then turn the key
switch OFF and disconnect the battery.
2.
Loosen, do
not
remove, the bleed screw.
(Use
3
mm Allen wrench for side
cylinders.) Hold rag beneath the bleed
screw to keep hydraulic fluid from
spraying out.
ACAUTION
The bleed screw should only be
loosened enough to allow the air to
escape.
3.
When only hydraulic fluid starts flowing
from the cylinder, securely tighten the
bleed screw.
00700
-
CL222
-
05,
1
5
March 2005
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