SkyTrak 6036 Service Manual - Manual (Page 334)

Hydraulic System
8.118 Model 6036 Legacy
4. Connect all hoses according to the labels or other
marks used to identify their locations during removal.
5. Operate the vehicle in order to check all boom
functions and check for hydraulic system leaks.
6. Wipe up any hydraulic fluid spillage in, on, near and
around the vehicle. Perform the pressure check and
circuit bleeding procedure below.
g. Lift/Lower Cylinder Pressure Checking and
Circuit Bleeding
1. Attach a 4000 psi (276 bar) gauge to the test fitting
on the “VG” port of the unloader valve to test the
system pressure. Pressure readings should be
3000
±100 psi (207 ±7 bar). Refer to Section 8.7,
“Hydraulic System Testing.” To check the cylinder
pressure, consult the factory.
2. With no accessory installed on the Quick Attach,
start with the lift/lower and attachment tilt cylinders
fully retracted.
3. Fully raise and fully extend the boom. Hold the
joystick at full extend while fully raising the lift/lower
cylinder.
4. Fully retract the attachment tilt cylinder. Hold the
joystick at full retract while fully lowering the boom.
5. Repeat Steps 3-4 five times.
8.13.8 Frame Sway Cylinder
The frame sway cylinder (Fig. 8 -77, 1) is attached to the
right side of the frame at the front axle and to the cast loop
on the axle.
Figure 8- 77 Frame Sway Cylinder
a. Frame Sway Cylinder Removal
1. Park the vehicle on a firm, level surface, fully retract
all hydraulic cylinders, ground the attachment (if
any), place the travel select lever in (N) NEUTRAL,
place the neutral lock lever in the (N) NEUTRAL LOCK
position, engage the park brake switch and shut the
engine OFF.
2. Place an Accident Prevention Tag on both the
ignition key switch and the steering wheel, stating
that the vehicle should not be operated. Refer to
Section 1.5, “Accident Prevention Tag Usage.”
3. Unlock and open the rear door. Allow the hydraulic
fluid to cool.
4. Label or otherwise mark the hydraulic hoses in
relation to the cylinder being removed. Safely
position suitable supports between the frame and
axle to prevent the frame from leaning to one side.
WARNING:
Escaping hydraulic fluid
under pressure can penetrate the skin, causing
death or serious injury.
WARNING:
Hot hydraulic fluid can cause
severe burns. Wait for hydraulic fluid to cool
before servicing any hydraulic component.
WARNING:
Escaping hydraulic fluid
under pressure can penetrate the skin, causing
death or serious injury. Relieve hydraulic
pressure before servicing any hydraulic
component.
MA8340
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