SkyTrak 6036 Service Manual - Manual (Page 37)

2.21 Model 6036 Legacy
General Information and Specifications
2.8 REPLACEMENT
ALWAYS use the correct tool when removing or replacing
any part or performing any service.
Some procedures may require the use of specialized
tools. If needed, many of these tools can be obtained
through Snap-on
®
tool distributors.
Contact:
Snap-on Incorporated
P.O. Box 1410
Kenosha, WI 53141-1410 USA
Phone: (262)-656-5200
Internet: http://www.snapon.com
Snap-on ® is a registered trademark of Snap-on
Technologies, Inc.
Replace o-rings, seals and gaskets whenever they are
disturbed. NEVER mix new and old seals or o-rings,
regardless of apparent visual condition. ALWAYS
lubricate new seals and o-rings with hydraulic oil before
installation.
2.9 HOSES AND TUBES
2.9.1 Hose and Tube Inspection
1. Damaged, dented, crushed, or leaking hose and
tube fittings restrict oil flow and the operation of the
system being served. Fittings showing signs of
movement from their original positions have failed
and must be replaced. ALWAYS replace the entire
hose or tube assembly if the fittings are damaged.
2. Hoses must remain in good condition. Obvious signs
of external hose wear, or hydraulic fluid leaking or
weeping indicate the need to replace the hose
assembly. If in doubt, replace the hose.
3. Replace if any of the following conditions exist:
• Ballooning (replace hose immediately!)
• Kinking, crushing, stretching or deforming
• Concealed corrosion of wire reinforcement
• Chafed outer cover
2.9.2 Hose and Tube Installation
1. When installing a new hose, loosely connect each
end, and verify that the hose takes up the designed
position, and is free of twists and unnecessary
bends before tightening the connection completely.
Tighten any support clamps sufficiently in order to
hold the hose without crushing it, preventing
movement and chafing of the hose.
2. If a hose is replaced on a part that moves, move the
part through its entire range of motion to verify that
the hose will not make contact with any component.
Adjust the hose as necessary.
3. When installing any hose, be sure that the hose
does not become kinked or twisted.
4. NEVER allow free-moving or unsupported hoses to
contact each other or any other component. Such
contact causes chafing and reduces hose life.
2.10 BEARINGS
2.10.1 Bearing Removal
1. NEVER remove bearings unless absolutely
necessary! ALWAYS use the recommended size
and type of bearing puller to reduce the risk of
damage to the bearing or related components.
2. When bearings or bushings are removed, verify that
the bearing or bushing is free of discoloration, nicks,
scuffing, or signs of overheating. If in doubt, replace
the bearing or bushing.
2.10.2 Bearing Cleaning
ALWAYS wear safety glasses. Clean bearings that are
acceptable for service in a suitable solvent. NEVER spin-dry
a bearing with compressed air; this can cause metal-to-
metal contact and damage the bearing. Compressed air
can also cause a bearing to come apart. After cleaning a
bearing, immerse the bearing in clean lubricating oil until
needed.