INTRODUCTION RT880E SERVICE MANUAL
1-10 Published 11-10-2014, Control # 524-00
Flat metal locks must be installed properly to be effective.
Bend one end of the lock around the edge of the part. Bend
the other end against one flat surface of the nut or bolt head.
Always use new locking devices on components which have
moving parts.
When installing lock washers on housings made of aluminum
or thin sheet metal, use a flat washer between the lock
washer and the housing.
Wires and Cables
Batteries should always be disconnected prior to working on
the electrical system.
When removing or disconnecting a group of wires or cables,
tag each one to ensure proper identification during assembly.
Shims
When shims are removed, tie them together and identify
them as to location. Keep shims clean and flat until they are
reinstalled.
Hoses and Tubes
Inspection
Check hoses carefully. Do not use your bare hands to check
for leaks.
Tighten all connections to recommended torque.
If the hose end connections are damaged, always replace
the hose or tube. Damaged, dented, crushed, or leaking
hose fittings restrict oil flow and the operation of the parts
being served. Fittings showing signs of movement from their
original position have failed and must be replaced.
Be sure hoses are in good condition. If in doubt, replace
them.
Replace hoses if any of the following is evident Figure 1-4:
• Evidence of kinking or crushing (1)
• Chaffing or cuts; wire is exposed (2)
• Damaged or leaking fittings (3)
• Localized ballooning (4)
Installation
1. When installing a new hose, loosely connect each end
and make sure the hose takes up the designed position
before tightening the connection. Clamps should be
tightened sufficiently to hold the hose without crushing
and to prevent chafing.
2. If a hose is replaced on a part that moves during opera-
tion, be sure it moves freely by moving the part through
its complete range of movement.
3. Be sure any hose which has been installed is not kinked
or twisted.
Free moving, unsupported hoses must never rub on each
other or related work surfaces. This causes chafing and
reduces hose life.
Bearings
Antifriction Bearings
When an antifriction bearing is removed, cover it to keep out
dirt and abrasives. Wash bearings in non-flammable
cleaning solution and allow them to drain dry. The bearing
may be dried with compressed air BUT do not spin the
bearing. Discard the bearings if the races and balls or rollers
are pitted, scored, or burned. If the bearing is serviceable,
coat it with oil and wrap it in clean waxed paper. Do not
unwrap new bearings until time of installation. The life of an
antifriction bearing will be shortened if not properly
lubricated. Dirt in an antifriction bearing can cause the
bearing to lock resulting in the shaft turning in the inner race
or the outer race turning within the cage.
DANGER
High Pressure/Temperature Hazard!
Exercise extreme care around pressurized hydraulic
hoses or tubes. DO NOT work on a hydraulic system
while it is in operation or until all pressure is released.
Hydraulic oil is hot, it can cause severe burns.
Pressurized hydraulic oil can cause death or serious
injury.
Stay clear of all hydraulic oil leaks. Relieve system
pressure and use a piece of cardboard or paper to check
for leaks. Do not use your hands.
Fluid injected into skin must be surgically removed within
a few hours by a doctor familiar with this type of injury or
gangrene will result.
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