SkyTrak 8042 Service Manual - Manual (Page 236)

3.175 Model 8042, 10042, 10054 Legacy Rev. 03/04
Boom
5. Excessive Slave cylinder
pivot pin noise and/or wear.
1. Insufficient lubrication.
2. Worn bearing(s).
1. Lubricate at regular intervals.
(Refer to appropriate owners
manual for lubrication points.)
Replace worn pins as needed.
Refer to Section 3.3.4, “Outer
Boom Installation.”
2. Replace bearing(s) and
lubricate at regular intervals.
(Refer to appropriate owners
manual for lubrication points.)
6. 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 3.4.3, “Boom Chain
Tension Check,” - 8042 and
10042 or Section 3.7.3, “Boom
Chain Tension Check,” - 10054.)
2. Replace chains as needed.
(Refer to Section 3.4.5, “Boom
Extend and Retract Chains
Removal and Replacement,” -
8042 and10042 or Section
3.7.6, “Boom Extend and
Retract Chains Removal and
Replacement,” - 10054.)
3. Replace wear pad. Refer to
Section 3.9.2, “Boom Wear Pad
Replacement.”
4. Remove contamination and/or
corrosion from wear pad sliding
surfaces and lubricate. If the
surfaces cannot be reconditioned,
replace the boom section(s).
5. Refer to Section 8, “Hydraulic
System.”
6. Replace the damaged boom
section. (Refer to Section 3.3,
“Boom Assembly Maintenance
(8042 and 10042),” or Section
3.6, “Boom Assembly
Maintenance (10054).”)
Boom Troubleshooting (Continued)
Problem Cause Remedy