SkyTrak 6042 Service Manual - Manual (Page 354)

Hydraulic System
8.122 Model 6042 Legacy Origin 7/02
Figure 8-81 Stabilizer Cylinder Components
b. Stabilizer Cylinder Disassembly
Note: An additional o-ring may be included at the base
of the cylinder rod. This additional o-ring may be
discarded, as it served only in a temporarily protective
role.
1. Clean the stabilizer cylinder (Fig. 8-81, 1) with a
suitable cleaner. Remove all dirt, debris and grease
from the cylinder.
IMPORTANT: Avoid using excess force when clamping
the cylinder in a vise. Apply only enough force to hold the
cylinder securely. Excessive force can damage the
cylinder tube (Fig. 8-81, 2).
2. Secure the stabilizer cylinder (Fig. 8-81, 1) in a soft-
jawed vise or other holding device, and place a
suitable container beneath the cylinder to catch
hydraulic fluid run-off.
3. Slowly remove the two pilot-operated check valves
(Fig. 8 -81, 3), the pressure reducing valve (4) and
the five solenoid valves (5 and 6) on the manifold
block (7) if replacement of any of these components
is required. Label the solenoid valves with the
locations stamped on the manifold. Remove the
solenoid cartridges from the manifold.
4. Remove the locking insert (Fig. 8-81, 8) from its hole
in the head gland threads. Pry or drill out the insert
as required. DO NOT damage the head gland threads.
A new locking insert will be required for reassembly.
Note: The head gland (Fig. 8-81, 9) is installed at a
torque of 300-400 lb-ft (407-542 Nm). Use suitable tools
to remove the head gland.
MH2900
Apply Loctite #271 to
threads and torque to
1,100-1,250 lb-ft
(1.492-1.695 Nm)
19
Torque to
35-40 lb-ft
(47-54 Nm)
Torque to
300-400 lb-ft
(407-542 Nm)
11
8
9
13
15
4
3
6
7
2
12
17
18
14
5
16
1
20
21
23
Torque solenoid nut
to 4-6 lb-ft (5-8 Nm)
and cartridge to
25-30 lb-ft
(34-41 Nm)
22
24
3
10
~
WARNING:
Significant pressure may be
trapped inside the cylinder. Exercise caution
when removing a counterbalance valve or a pilot-
operated check valve from a cylinder. Escaping
hydraulic fluid under pressure can penetrate the
skin, causing death or serious injury.