8799-B, 2011-09-23
Manitowoc Cranes, Inc.
4/4
Manitowoc, Wisconsin 54220 U.S.A.
14000 SERIES 2
Luffing Jib Raising Procedure
Fixed Jib No. 138 on Luffing Jib No.135 on Boom No. 76
C. Fold Under Jack-Knife Method:
Raising:
Boom and luffing jib are assembled in fold under position. Slowly raise boom; luffing jib point wheels will roll along
ground. When luffing jib hinge pin is 30 Ft. (9.1m) off ground, connect luffing jib pendants and fixed jib backstays. Place
fixed jib backstays on ground clear of luffing jib point wheels. Move luffing jib top wire rope guide to working position.
Tighten luffing jib suspension with luffing jib hoist. Slowly raise boom until luffing jib is vertical and luffing jib point wheels
are clear of ground. Slowly raise luffing jib to 10 degrees ahead of vertical with luffing jib hoist leaving wheels on ground.
Attach assembled fixed jib to luffing jib top. Attach fixed jib backstay pendants to fixed jib strut. Attach fixed jib stop to
fixed jib butt and temporarily tie off to fixed jib strut. Boom and luffing jib are raised together using boom hoist while fixed
jib point wheels roll on ground. Continue raising until fixed jib suspension tightens. Attach fixed jib stop to luffing jib top.
Boom, luffing jib and fixed jib are then raised together using boom hoist until boom reaches desired boom operating
range. Fixed jib radius must be within capacity chart before swinging over side of machine, when raising over end of
blocked crawlers.
Lowering:
Position boom at 75 degrees prior to lowering luffing jib and fixed jib. Slowly lower luffing jib until luffing jib angle
reaches 10 degrees ahead of vertical. Maintain 10 degrees ahead of vertical angle with luffing jib while lowering boom
until fixed jib point wheels contact ground. Remove fixed jib stop from luffing jib top and temporarily tie off to fixed jib
strut. Lower boom as fixed jib point wheels roll on ground. Maintain 10 degrees ahead of vertical angle with luffing jib
while lowering boom until luffing jib point wheels contact ground. Remove fixed jib from luffing jib. Raise boom slightly
and lower luffing jib to vertical. Slowly boom down and assist luffing jib point wheels in fold under direction. Continue to
lower boom while luffing jib rolls along ground. Boom down until luffing jib hinge pin is 30 Ft. (9.1m) off ground.
Disconnect luffing jib pendants and fixed jib backstays (if still attached). Move luffing jib top wire rope guide to stowed
position. Raise luffing jib strut with luffing jib hoist until luffing jib strut is in line with luffing jib. Lower boom and luffing jib
to ground.
Boom and luffing jib combinations in following table may be raised using fold under jack-knife method.
WITH OR WITHOUT BOOM CATWALKS
14000 SERIES 2
Maximum Boom and Luffing Jib Lengths Lifted Unassisted Using Jack-Knife Method
Boom
Length
Over End of Blocked Crawlers
Luffing Jib No. 135 Fixed Jib No. 138
Feet Meters Feet Meters Feet Meters
164.0 50,0 140.0 42,7 30.0 - 60.0 9,1 - 18,3
173.9 53,0 140.0 - 150.0 42,7 - 45,7 30.0 - 60.0 9,1 - 18,3
183.7 56,0 140.0 - 160.0 42,7 - 48,8 30.0 - 60.0 9,1 - 18,3
(a)(b) 193.6 59,0 140.0 - 170.0 42,7 - 51,8 30.0 - 60.0 9,1 - 18,3
Load blocks, hook and weight ball on ground until boom, luffing jib and fixed jib are erected.
(a) Requires lower boom point to be removed.
(b) When equipped with boom catwalks, lowerworks jacking cylinders must be attached.
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