4-14
Published 01-29-2014, Control # 496-00
BOOM TMS800E SERVICE MANUAL
Installation
NOTE: The following procedure applies to a boom totally
removed from the crane.
1. Attach an adequate lifting device to the boom and
suspend the boom over the machine.
2. Lower the boom into position and align the boom pivot
shaft mounting holes for installation of the pivot shaft to
the superstructure assembly.
3. Lubricate the pivot shaft bushings in the superstructure
assembly.
4. Block the boom in place.
5. The boom may need to be raised or lowered to aid in the
installation of the pivot shaft. Install pivot shaft.
6. Install anti-rotation pin and lock in place with clip pin.
7. Using the lifting device attached to the boom, lower the
boom onto the lift cylinder rod end and extend the lift
cylinder as necessary to align rod end with bore in base
section.
8. Lubricate the upper lift cylinder pin. Install upper lift
cylinder pin. The lift cylinder may need to be raised or
lowered to aid in the installation of the lift cylinder pin.
9. Secure the upper lift cylinder pin with the end plate,
capscrews and washers. Torque the capscrews.
10. Lower the jack after making sure it is properly supported.
11. Remove the boom lifting device.
12. Activate the hydraulic system and remove the boom and
lift cylinder blocking devices. Lower the boom to
horizontal. Shut down the crane.
13. Connect the hydraulic lines to the lower telescope
cylinder as tagged prior to removal.
14. Install the base cover on top of the boom base section,
then secure with four bolts and washers.
15. Connect any electrical wires as tagged prior to removal.
16. Refer to Jib and Retraction Cable, page 4-15 in this
section for cable adjustments.
17. Refer to Cam Operated Check Valve Adjustment, page
4-15 in this section for valve adjustment.
Functional Check
1. Activate the hydraulic system and check for proper
operation and any leaks.
2. Ensure the boom will extend and retract properly.
NOTE: Cycle the boom several times to evacuate air from
cylinders.
3. Ensure the lift cylinder will not allow the boom to drift
down until the operator lowers it.
4. Ensure all electrical components disconnected during
removal are operating properly.
Inspection
Visually inspect telescoping sections for adequate lubrication
of all wear surfaces. Observe extended sections for
evidence of cracks, warping, or other damage. Periodically
check security of boom wear pads. Check boom nose
sheaves for security and freedom of movement.
Should boom chatter or rubbing noises in the boom occur, it
will be necessary to lubricate the telescope cylinder wear
pads. Refer to Lubrication, page 9-1.
Boom Alignment and Servicing
Refer to Lubrication, page 9-1 for the proper lubricant.
Boom alignment is done as the boom sections are being
assembled into one another. A check and fine adjustment is
as follows:
1. Fully extend the boom horizontally.
2. Lubricate the boom bottom channels and top corners.
3. Adjust the front top wear pads such that wear pad is just
touching or is no more than 2 mm (0.079 in) from
contacting the next section both at the top and side
surfaces of the top radius.
DANGER
Ensure blocking and lifting devices are capable of
supporting the boom assembly.
DANGER
Block the boom before doing any work under the boom.
DANGER
Failure to properly support the boom lift cylinder may
result in death or injury to personnel.
DANGER
If the hydraulic system must be activated to extend or
retract the lift cylinder, ensure the rod end is properly
aligned with the lift cylinder attach fitting.
Reference Only
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