3-31
CROWD CYLINDER ASSEMBLY AND INSTALLATION PROCEDURE
(REFER TO CYLINDER ASSEMBLY IN PARTS MANUAL)
It is very important to follow this procedure prior to assembling the boom for the RT-300.
The primary and secondary cylinder dimensional relationship must be held to assure that
the hoses clamp and terminate properly. The holding fixture (600-70087) should be used
at the rod end of the cylinders and band clamp (201-00127) should be used on the barrel
end to support the cylinders. Pins (870-60076 and 870-80006) from the boom assembly
should be used with the holding fixture. Without the holding fixture and band clamp it is
extremely difficult to control the cylinders while the hoses are being installed. The holding
fixture and band clamp will be removed during boom assembly.
BOOM ASSEMBLY
(REFER TO BOOM ASSEMBLY IN PARTS MANUAL)
READ SECTION ON CHAIN ADJUSTMENT BEFORE STARTING BOOM ASSEMBLY.
The following steps should be taken during the boom assembly:
1.
Install rub pads and two retraction and extension chains on the rear of the fourth
stage boom. Take care to keep the chains as clean as possible.
2.
Install the fourth stage into the third stage. Guide the chains on through the third
stage.
3.
Install chain sheaves on each end of third stage. Install cylinder assembly into rear of
third stage. It will be necessary to remove band clamp and holding fixture from
cylinder assembly at this time. Install trunnion pins through third stage into secondary
cylinder. Add spacer bar with rub pads at outer end of third stage. Add rub pads at
rear of third stage.
4.
Install third stage into outer end of second stage. It will be necessary to remove
crowd cylinder sequence valves at this point. Cap ports and hose ends. Add
retraction chain anchor nuts, anchor plate and jackscrews at tip of second stage.
Attach retraction chains to anchor nuts. Add rub pads at outer and base end of
second stage. Install primary trunnion pins and secondary cylinder pin at rear of
second stage. Add extension chain adjustment clevises and attach chains. Reinstall
sequence valves for crowd cylinders at rear of second stage.
5.
Install second stage into base boom. Install primary cylinder pin at rear of base
boom.
6.
Go through entire boom assembly and add miscellaneous parts not yet installed.
Again, refer to chain adjustment procedure (Page 3-25) as it is critically important.
Summary of Contents for RT-300-2G
Page 6: ...1 2 DIMENSIONAL DATA Courtesy of Crane Market...
Page 7: ...1 3 RT 300 2G TURNING DIMENSIONS Courtesy of Crane Market...
Page 16: ...Courtesy of Crane Market...
Page 24: ...2 8 Courtesy of Crane Market...
Page 33: ...2 17 CAPACITY CHART FOR RT 300 2G Courtesy of Crane Market...
Page 34: ...2 18 CAPACITY CHART FOR RT 300 2G METRIC Courtesy of Crane Market...
Page 55: ...3 9 Courtesy of Crane Market...
Page 66: ...Courtesy of Crane Market...
Page 67: ...Courtesy of Crane Market...
Page 88: ...Courtesy of Crane Market...
Page 89: ...Powered by TCPDF www tcpdf org Courtesy of Crane Market...
