SkyTrak 6042 Service Manual - Manual (Page 117)

3.71 Model 6042 Legacy Origin 7/02
Boom
3.7 TROUBLESHOOTING
This section provides an easy reference guide covering
the most common problems that occur during operation
of the boom.
Boom Troubleshooting
Problem Cause Remedy
1. Boom will not extend or
retract.
1. Broken hydraulic hose(s) or
tube(s) and/or connections
leaking.
2. Extend/retract hydraulic system
not operating properly.
3. Faulty extend/retract cylinder.
4. Broken chains or anchors.
1. Locate break, replace hose(s)
or tube(s), tighten connections.
2. Refer to Section 8.8, “Hydraulic
Circuits and Troubleshooting.”
3. Repair cylinder. (Refer to
Section 8.13.6, “Extend/Retract
Cylinder.”)
4. Replace chains or anchors as
needed. (Refer to Section 3.4.5,
“Boom Extend and Retract
Chains Removal and
Replacement.”)
2. Dropping chain, or jerky
boom extend or retract
functions.
1. Chain(s) tension not properly
adjusted.
2. Chain(s) stretched or binding.
3. Wear pads loose, contaminated,
excessively worn or damaged.
4. Contaminated, corroded or
rusted wear pad sliding
surfaces.
5. Extend/retract hydraulic system
not operating properly.
6. Damaged boom section.
1. Adjust chain(s). (Refer to
Section 3.4.4, “Boom Chain
Tension Adjustment.”)
2. Replace chain(s) as needed.
(Refer to Section 3.4.5, “Boom
Extend and Retract Chains
Removal and Replacement.”)
3. Replace wear pads. (Refer to
Section 3.5.1, “Boom Wear Pad
Replacement.”)
4. Remove contamination and/or
corrosion from wear pad sliding
surfaces and lubricate. (Refer to
Section 3.5.2, “Boom Wear Pad
Lubrication.”) If the surfaces
cannot be reconditioned,
replace the boom section(s).
5. Refer to Section 8.8, “Hydraulic
Circuits and Troubleshooting.”
6. Replace the damaged boom
section. (Refer to Section 3.3,
“Boom Assembly Maintenance.”)