Manitowoc National Crane NBT40-1 Series User manual

1
NBT40-1 S/N xxxxxx GA24150
Crane Load Chart complies with
ASME B30.5 / CSA Z150
Aerial Work Platform Reach Diagram complies with
ANSI/SAIA A92.2 / CSA C225
SERIAL NUMBER
NBT40-1
LOAD CHARTS &
REACH DIAGRAM

2NBT40-1 S/N xxxxxx

3
NBT40-1 S/N xxxxxx
TABLE OF CONTENTS
GENERAL NOTES.................................................................................................................... 4-5
LINE PULLS & REEVING INFO / HOIST PERFORMANCE........................................................ 6
RANGE DIAGRAM w/ EXTENSION ............................................................................................ 7
WEIGHT REDUCTIONS / LIFTING AREA DIAGRAM................................................................. 8
ON OUTRIGGERS FULLY EXTENDED
MAIN BOOM 360° WITHOUT EXTENSION ......................................................................... 9
MAIN BOOM 360° WITH EXTENSION STOWED .............................................................. 10
TELE EXTENSION.............................................................................................................. 11
ON OUTRIGGERS 50% EXTENDED
MAIN BOOM 360° WITHOUT EXTENSION ....................................................................... 12
MAIN BOOM 360° WITH EXTENSION STOWED .............................................................. 13
ON OUTRIGGERS 0% EXTENDED
MAIN BOOM 360° WITHOUT EXTENSION ....................................................................... 14
MAIN BOOM 360° WITH EXTENSION STOWED .............................................................. 15
*****************************************************************************************
NOTES FOR AERIAL WORK PLATFORM OPERATION ......................................................... 16
AERIAL WORK PLATFORM ON OUTRIGGERS FULLY EXTENDED ..................................... 17

4NBT40-1 S/N xxxxxx
NOTES FOR LIFTING CAPACITIES
GENERAL:
1. Rated loads as shown on lift chart pertain to this equipment as originally manufactured. Modifications to the
equipment or use of optional equipment other than that specified can result in a reduction of capacity.
2. Constructionequipmentcanbehazardousifimproperlyoperatedormaintained.Operationandmaintenanceofthis
equipmentshallbeincompliancewiththeinformationintheOperator’sManual,ServiceManual,andPartsManual
supplied. If these manuals are missing, order replacements from the manufacturer through the distributor.
3. The operator and other personnel associated with this equipment shall fully acquaint themselves with the latest
American National Safety Standards (ASME/ANSI) for lifting devices.
SETUP:
1. Theequipmentshall beleveland onafirm supportingsurface.Dependingon thenatureof thesupportingsurface,
it may be necessary to have structural supports under the outrigger floats to spread the load to a larger bearing
surface.
2. For outrigger operation, all outriggers shall be properly extended with tires raised free of equipment weight before
operating the boom or lifting loads.
3. When the equipment is equipped with center front stabilizer, the front stabilizer shall be set in accordance with
instructions in Operator’s Manual.
4. When equipped with removable and/or extendible counterweight, the proper counterweight shall be installed and
fully extended before and during operation.
5. With certain boom and hoist tackle combinations, maximum capacities may not be obtainable with standard cable
lengths.
6. Unless approved by the crane manufacturer, do not travel with boom extension, jib or platform erected unless
otherwise noted. Refer to Operator’s Manual for job-site travel information.
7. Inspect vehicle and lifting devices, including operation prior to use each day.
8. Always level the equipment with the level indicator located at each outrigger control station.
OPERATION:
1. Ratedloads atrated radiusshallnotbeexceeded. Donotattempttotipthemachinetodetermineallowableloads.
Forclamshell,grapple,magnetorconcretebucketoperation,weightofcomponentandloadmustnotexceed80%
of rated lifting capacities.
2. AllratedloadshavebeentestedtoandmeettherequirementsofSAEJ1063-CantileveredBoomCraneStructures
- Method of Test, and do not exceed 85% of the tipping load on outriggers fully extended, and SAE J1289 - Mobile
Crane Stability Ratings [1.25P < (T-0.1A)] on outriggers 50% and 0% extended (fully retracted) as determined by
SAE J765 - Crane Stability Test Code.
3. Ratedloadsincludetheweightofhookblock,slingsandauxiliaryliftingdevicesandtheirweightsshallbesubtracted
fromthelistedratingto obtain the netloadtobe lifted. When more thantheminimumrequired parts of lineneeded
to pick the load are used, the additional rope weight as measured from the lower sheaves of the main boom nose
shallbeconsidered part oftheload to belifted.When boththehookblock andheadacheballare reeved,thelifting
devicethatisNOTinuse,includingthelineasmeasuredfromthelowersheave(s)ofthenosesupportingtheunused
device shall be considered part of the load.
4. Load ratings are based on freely suspended loads. No attempt shall be made to move a load horizontally on the
ground in any direction.
5. The maximum in-service wind speed is 20 m.p.h. on the boom capacities and 15 m.p.h. on the jib capacities. It is
recommendedwhenwindvelocityisabove20m.p.h.,ratedloadsandboomlengthsshallbeappropriatelyreduced.
For equipment not in-service, the main boom should be retracted and lowered with the swing brake set in wind
velocities over 30 m.p.h.
6. Rated loads are for lift crane service only.
7. Do not operate at a radius or boom length where capacities are not listed. At these positions, the equipment may
overturn without any load on the hook.
8. The maximum load which can be telescoped is not definable because of variations in loadings and crane
maintenance, but it is safe to attempt retraction and extension of the boom within the limits of the capacity chart.
9. When the boom length or lift radius or both are between values listed, the smallest load shown at either the next
larger radius or next longer or shorter boom length shall be used.
10. For safe operation, the user shall make due allowances for his particular job conditions, such as: soft or uneven
ground, out of level conditions, high winds, side loads, pendulum action, jerking or sudden stopping of loads,
experience of personnel, two machine (tandem) lifts, traveling with loads, electric wires, obstacles, hazardous
conditions, etc. Side pull on boom or jib is extremely dangerous.

5
NBT40-1 S/N xxxxxx
NOTES FOR LIFTING CAPACITIES (cont'd.)
OPERATION (cont'd.):
11. The boom angle before loading should be greater than the loaded boom angle to account for deflection.
12. When operating in the "On Outriggers 50% Extended (17.5' spread)" mode, the outrigger beam pins must be
engaged. When operating in the "On Outriggers 0% Extended (6.5' spread)" mode, the outrigger beams must be
fully retracted. Failure to follow these precautions could result in structural damage or loss of stability of the
equipment.
13. Donotliftloadswhenboomisfullylowered.TheRatedCapacityLimiter(RCL)sensespressureandwillnotprovide
warnings or lockout. The crane can become overloaded if lift cylinder(s) is fully retracted.
14. Use RCL/angle indicator as reference only.
15. Capacitiesforthe34ft.boomlengthshallbeliftedwithboomfullyretracted.Ifboomisnotfullyretracted,capacities
shall not exceed those shown for the 47 ft. boom length.
16. Always pay out load line before extending boom to avoid damaging loadline, equipment structure, or tripping anti-
two-block system.
17. The maximum outrigger pad load is 57,200 lb (minimum chassis requirement).
18. Loadsliftedmustbewithinsafewinch capacity.Multiplepartropereeving mustbeusedonloadsexceedingwinch
singlepartratedpull.Auxiliaryboomheadratedforsinglepartuseexceptmulti-reevegroupusedfornominalrated
load. Extensions are rated for single part use only.
19. Do not operate the boom over personnel or allow them to walk or stand beneath the boom or load.
20. Do not allow personnel on carrier deck or crane frame area when rotating crane.
21. Ratedloadsmustbereducedwhenliftingattheboomtipwithjibstowedorerected.Refertothechartlabeled"Rated
Load Reductions with Extension" for the reduction at each boom length.
22. Do not allow personnel to ride on hook, hook block, or load.
23. Operate controls slowly and smoothly to avoid damage to equipment or personnel.
24. Boom must be in boom rest and outriggers fully retracted for travel.
25. Maintain a clearance of at least 10 feet between any part of the crane, loadline, or load, and any electrical line
carrying up to 50,000 volts. One foot of clearance is required for every additional 30,000 volts.
DEFINITIONS:
1. Operating Radius: Horizontal distance from a projection of the axis of rotation to the supporting surface before
loading to the center of the vertical hoist line or tackle with load applied.
2. Loaded Boom Angle (Shown in Parenthesis on Main Boom Capacity Chart): is the angle between the boom base
section and the horizontal, after lifting the rated load at the rated radius with the rated boom length.
3. Working Area: Areas measured in a circular arc about the center line of rotation as shown on the working area
diagram.
4. Freely Suspended Load: Load hanging free with no direct external force applied except by the lift cable.
5. Side Load: Horizontal force applied to the lifted load either on the ground or in the air.
6. No load stability limit: The radius beyond which it is not permitted to position the boom plus block configuration
because equipment can overturn without any load on the hook.
7. Structurallengthlimit:Thelimitwheretheboom,ortheboomwithextensiondeployed,cannotbeextendedbecause
of structural limitations.

6NBT40-1 S/N xxxxxx
HOIST PERFORMANCE
LINE PULLS AND REEVING INFORMATION
HOISTS CABLE SPECS. PERMISSIBLE
LINE PULLS NOMINAL CABLE LENGTH
Main & Aux 5/8" (16 mm) 35x7 Class EEIPS, WSC
Min. breaking strength 56,400 lb 11,250 lb* 450 ft.
Main & Aux 18 mm Synthetic K-100 Hoist Rope (ISO)
Min. breaking strength 63,700 lb 12,740 lb* 463 ft.
The approximate weight of 5/8" wire rope is 1.0 lb/ft.
The approximate weight of 18 mm synthetic rope is 0.16 lb/ft.
* With certain boom and hoist tackle combinations, the allowable line pull may be
limited by hoist performance. Refer to Hoist Performance table for lift planning to
ensure adequate hoist performance on drum rope layer required.
Wire
Rope
Layer
Hoist Line Pulls Drum Rope
Capacity (ft.)
Two Speed Hoist
Low High
Available lb* Available lb* Layer Total
1 15,000 7,516 82 82
2 13,529 6,765 92 174
3 12,299 6,150 101 275
4 11,275 5,637 110 385
5 10,407 5,204 119 504
* Refer to Line Pulls and Reeving Information table for max. lifting
capacity of wire rope.
Partsofline 12345678
Max. boom length (ft.)
at max. elevationwith
stated rigging and load
block at ground level
1821421038166554740
Lowspeed lift (lb) 11250 22500 33750 45000 56250 67500 78750 80000
High speed lift (lb) 5000 10000 15000 20000 25000 30000 35000 40000
Synthetic rope layer height may vary and may reduce available line pull per layer.
CAPACITY REDUCTIONS FOR SYNTHETIC ROPE USE:
If only synthetic rope is installed on the hoist(s), the following capacity reductions apply:
Main boom charts Extension charts
Outriggers fully extended 140 lb 0 lb
Outriggers 50% extended 270 lb 0 lb
Outriggers 0% extended 450 lb N/A
If synthetic rope is installed on either the main or aux hoist, and wire rope is installed on the other hoist, no
capacity reductions are required.

7
NBT40-1 S/N xxxxxx

8NBT40-1 S/N xxxxxx
WEIGHT REDUCTIONS FOR LOAD HANDLING DEVICES
When lifting over boom extension, deduct
total weight of all load handling devices
reeved over main boom nose directly from
boom extension capacity.
NOTE:Allloadhandlingdevicesandboom
attachmentsareconsideredpartoftheload
and suitable allowances MUST BE MADE
fortheircombinedweights. Weights arefor
National Crane furnished equipment.
AERIAL WORK PLATFORM * 1000 lb
AUXILIARYBOOM NOSE 71 lb
HOOKBLOCKS and HEADACHE BALLS:
50 ton, 4 sheave 800 lb+
40 ton, 3 sheave 600 lb+
30 ton, 2 sheave 500 lb+
20 ton, 1 sheave 400 lb+
7 ton overhaul ball 250 lb+
+Refer to rating plate for actual weight.
* Note: Lifting over the extension nose with the
work platform attached is not possible.

9
NBT40-1 S/N xxxxxx
RATED LIFTING CAPACITIES IN POUNDS WITHOUT STOWED EXTENSION
34 FT. - 142 FT. BOOM
ON OUTRIGGERS FULLY EXTENDED - 360°
Radius
in
Feet
#01
Main Boom Length in Feet
34 47-A 61-B 74-C 88-D 101-E 115-F 128-G 142
780,000
(74.9)
875,000
(73.1)
10 66,500
(69.4) 40,000 (75.6)
12 55,000
(65.7) 40,000 (73.1) 40,000 (77.4)
15 43,000
(59.7) 40,000 (69.2) 38,000 (74.5) 34,000 (77.7)
20 30,750
(48.9) 31,400 (62.3) 31,800 (69.5) 30,000 (73.7) 23,050 (76.7) 17,400 (78.8)
25 23,250
(35.7) 23,850 (55) 24,250 (64.2) 24,500 (69.5) 20,700 (73.4) 15,750 (75.9) 13,000 (78.3)
30 18,000
(13.5) 18,800 (46.9) 19,200 (58.8) 19,450 (65.2) 18,750 (70) 14,300 (73.1) 12,150 (75.8) 10,050 (78) 8,000 (79.5)
35 15,150
(37.5) 15,550 (52.9) 15,800 (60.7) 16,000 (66.4) 13,200 (70.1) 11,150 (73.5) 9,550 (75.8) 7,600 (77.7)
40 12,050
(25.2) 12,550
(46.6) 12,800 (56) 13,000 (62.6) 12,200 (67.1) 10,400 (71) 9,050 (73.7) 7,450 (75.9)
45 10,200
(40.1) 10,450 (51.5) 10,650 (59.1) 10,800 (64.2) 9,750 (68.4) 8,550 (71.4) 7,200 (74)
50 8,250
(31.8) 8,550 (46.2) 8,700 (55) 8,900 (60.8) 9,000 (65.7) 8,050 (69.1) 6,800 (72)
55 6,700
(20.6) 7,050 (40.3) 7,200 (50.8) 7,350 (57.3) 7,500 (62.8) 7,600 (66.7) 6,550 (70)
60 5,750
(33.6) 5,950 (46.3) 6,100 (53.7) 6,250 (59.7) 6,400 (64.1) 6,200 (67.9)
65 4,700
(25.4) 4,950 (41.4) 5,100 (49.9) 5,200 (56.6) 5,350 (61.4) 5,450 (65.6)
70 3,850
(12.6) 4,050 (35.9) 4,200 (45.9) 4,350 (53.3) 4,450 (58.6) 4,550 (63.1)
75 3,300
(29.6) 3,450
(41.6) 3,600 (49.9) 3,700 (55.7) 3,800 (60.6)
80 2,650
(21.6) 2,800 (36.9) 2,900 (46.4) 3,000 (52.7) 3,150 (58)
85 2,050
(7.2) 2,150 (31.5) 2,300 (42.6) 2,400 (49.6) 2,500 (55.3)
90 1,550
(25.1) 1,650 (38.5) 1,800 (46.3) 1,950 (52.6)
95 1,150
(16.5) 1,250 (34) 1,400 (42.8) 1,500 (49.7)
100 800
(28.8) 950 (39.2) 1,050 (46.7)
105 500
(22.6) 600 (35.1) 700 (43.6)
Minimum boom angle (°) for indicated length (no load) 0 21 32.5 40.5
Maximum boom length (ft.) at 0° boom angle (no load) 101
NOTE: ( ) Boom angles are in degrees.
#RCL operating code. Refer to RCL manual for operating instructions.
Lifting Capacities at Zero Degree Boom Angle
Boom
Angle Main Boom Length in Feet
34 47-A 61-B 74-C 88-D 101-E
0° 17,350
(31.5) 9,800 (44.5) 5,750 (58.5) 3,600 (71.5) 2,000 (85.5) 900 (98.5)
NOTE: ( ) Reference radii in feet. 80096912
Rated Load Reductions from main boom capacity
when lifting over main boom nose with extension erected (retracted):
(in lb) 2300 2150 2000 1950 1900 1850 1800 1750 1700

10NBT40-1 S/N xxxxxx
RATED LIFTING CAPACITIES IN POUNDS WITH STOWED EXTENSION
34 FT. - 142 FT. BOOM
ON OUTRIGGERS FULLY EXTENDED - 360°
Radius
in
Feet
#02
Main Boom Length in Feet
34 47-A 61-B 74-C 88-D 101-E 115-F 128-G 142
779,200
(74.9)
874,200
(73.1)
10 65,700
(69.4) 39,350 (75.6)
12 54,200
(65.7) 39,350 (73.1) 39,550 (77.4)
15 42,200
(59.7) 39,350 (69.2) 37,550 (74.5) 33,600 (77.7)
20 29,950
(48.9) 30,750 (62.3) 31,350 (69.5) 29,600 (73.7) 22,650 (76.7) 17,050 (78.8)
25 22,450
(35.7) 23,200 (55) 23,800 (64.2) 24,100 (69.5) 20,300 (73.4) 15,400 (75.9) 12,700 (78.3)
30 17,200
(13.5) 18,150 (46.9) 18,750 (58.8) 19,050 (65.2) 18,350 (70) 13,950 (73.1) 11,850 (75.8) 9,800 (78) 7,800 (79.5)
35 14,500
(37.5) 15,100 (52.9) 15,400 (60.7) 15,600 (66.4) 12,850 (70.1) 10,850 (73.5) 9,300 (75.8) 7,400 (77.7)
40 11,400
(25.2) 12,100
(46.6) 12,400 (56) 12,600 (62.6) 11,850 (67.1) 10,100 (71) 8,800 (73.7) 7,250 (75.9)
45 9,750
(40.1) 10,050 (51.5) 10,250 (59.1) 10,450 (64.2) 9,450 (68.4) 8,300 (71.4) 7,000 (74)
50 7,800
(31.8) 8,050 (46.2) 8,300 (55) 8,550 (60.8) 8,700 (65.7) 7,800 (69.1) 6,600 (72)
55 6,250
(20.6) 6,500 (40.3) 6,800 (50.8) 7,000 (57.3) 7,200 (62.8) 7,350 (66.7) 6,350 (70)
60 5,350
(33.6) 5,550 (46.3) 5,750 (53.7) 5,950 (59.7) 6,150 (64.1) 6,000 (67.9)
65 4,300
(25.4) 4,500 (41.4) 4,700 (49.9) 4,900 (56.6) 5,100 (61.4) 5,250 (65.6)
70 3,450
(12.6) 3,600 (35.9) 3,850 (45.9) 4,000 (53.3) 4,200 (58.6) 4,350 (63.1)
75 2,950
(29.6) 3,100
(41.6) 3,250 (49.9) 3,450 (55.7) 3,600 (60.6)
80 2,250
(21.6) 2,450 (36.9) 2,600 (46.4) 2,750 (52.7) 2,900 (58)
85 1,800
(31.5) 2,000 (42.6) 2,150 (49.6) 2,300 (55.3)
90 1,200
(25.1) 1,350 (38.5) 1,550 (46.3) 1,750 (52.6)
95 850
(16.5) 950 (34.0) 1,150 (42.8) 1,300 (49.7)
100 500
(28.8) 700 (39.2) 850 (46.7)
105 500
(43.6)
Minimum boom angle (°) for indicated length (no load) 0 22.5 35 43.4
Maximum boom length(ft.) at 0° boom angle (no load) 101
NOTE: ( ) Boom angles are in degrees.
#RCL operating code. Refer to RCL manual for operating instructions.
Lifting Capacities at Zero Degree Boom Angle
Boom
Angle Main Boom Length in Feet
34 47-A 61-B 74-C 88-D 101-E
0° 16,550
(31.5) 9,150 (44.5) 5,300 (58.5) 3,250 (71.5) 1,650 (85.5) 600 (98.5)
NOTE: ( ) Reference radii in feet. 80096913

11
NBT40-1 S/N xxxxxx
31 FT. - 55 FT. TELE BOOM EXTENSION
ON OUTRIGGERS FULLY EXTENDED - 360°
BOOM EXTENSION CAPACITY
NOTES:
1. 31ft.and55ft.extensionlengthsmay
be used for single line lifting service.
2. Radii listed are for a fully extended
boom with the boom extension
erected. For main boom lengths less
than fully extended, the rated loads
are determined by boom angle. For
boom angles not shown, use the rat-
ing of the next lower boom angle.
WARNING: Operation of this equip-
ment with heavier loads than the
capacities listed is strictly prohibited.
Tipping with boom extension occurs
rapidly and without advance warning.
3. Boom angle is the angle above or
below horizontal of the longitudinal
axis of the boom base section after
lifting rated load.
4. Capacities listed are with outriggers
properly extended and vertical jacks
set.
5. Whenliftingover themainboom nose
with 31 ft. or 55 ft. extension erected,
the outriggers must be fully extended
or 50% extended (17.5’ spread).
Radius
in
Feet
31 ft. LENGTH
#03
33 3,400
(80)
50 3,200
(75)
63 1,100
(70)
Min. boom angle
for indicated length
(no load) 63°
Max. boom length
at 0° boom angle
(no load) 61 ft.
Radius
in
Feet
55 ft. LENGTH
#04
40 2,200
(80)
59 2,200
(75)
74 700
(70)
Min. boom angle
for indicated length
(no load) 66°
Max. boom length
at 0° boom angle
(no load) 61 ft.
80096918
NOTE: ( ) Boom angles are in degrees.
#RCL operating code. Refer to RCL manual for
operating instructions.

12NBT40-1 S/N xxxxxx
RATED LIFTING CAPACITIES IN POUNDS WITHOUT STOWED EXTENSION
34 FT. - 142 FT. BOOM
ON OUTRIGGERS 50% EXTENDED (17.5 ft. spread) - 360°
Radius
in
Feet
#21
Main Boom Length in Feet
34 47-A 61-B 74-C 88-D 101-E 115-F 128-G 142
780,000
(74.9)
875,000
(73.1)
10 66,500
(69.4) 40,000 (75.6)
12 55,000
(65.7) 40,000 (73.1) 40,000 (77.4)
15 43,000
(59.7) 40,000 (69.2) 38,000 (74.5) 34,000 (77.7)
20 25,350
(48.9) 26,300 (62.3) 26,900 (69.5) 27,350 (73.7) 23,050 (76.7) 17,400 (78.8)
25 15,350
(35.7) 16,250 (55) 16,850 (64.2) 17,150 (69.4) 17,400 (73.4) 15,750 (75.9) 13,000 (78.3)
30 9,900
(13.7) 10,900 (46.9) 11,350 (58.7) 11,650 (65) 11,900 (69.8) 12,150 (73.5) 12,150 (75.8) 10,050 (78) 8,000 (79.5)
35 7,700
(38.4) 8,150 (53.4) 8,250 (60.9) 8,450 (60.9) 8,650 (70) 8,900 (73.5) 9,150 (75.8) 7,600 (77.7)
40 5,350
(26.5) 5,850
(47.1) 6,100 (56.3) 6,300 (56.3) 6,450 (67) 6,650 (70.8) 6,850 (73.7) 7,100 (75.9)
45 4,150
(40) 4,400 (51.3) 4,600 (51.3) 4,700 (63.7) 4,900 (67.9) 5,050 (71.1) 5,250 (74)
50 2,850
(31.7) 3,100 (46) 3,300 (46) 3,400 (60.3) 3,550 (64.9) 3,700 (68.4) 3,800 (71.6)
55 1,850
(20.5) 2,100 (40.1) 2,300 (40.1) 2,400 (56.8) 2,500 (61.9) 2,650 (65.7) 2,750 (69.1)
60 1,300
(33.4) 1,450 (33.4) 1,550 (53.2) 1,700 (58.9) 1,800 (63) 1,900 (66.7)
65 650
(25.2) 800 (25.2) 900 (49.4) 1,000 (55.8) 1,100 (60.3) 1,150 (64.2)
70 500
(57.4) 550 (61.7)
Minimum boom angle (°) for indicated length
(no load) 0 29.3 41 49 51.6 56.6
Maximum boom length (ft.) at 0° boom angle
(no load) 74
NOTE: ( ) Boom angles are in degrees.
#RCL operating code. Refer to RCL manual for operating instructions.
Lifting Capacities at Zero Degree Boom Angle
Boom
Angle Main Boom Length in Feet
34 47-A 61-B
0° 9,050
(31.5) 3,750 (44.5) 1,200 (58.5)
NOTE: ( ) Reference radii in feet. 80096914
Rated Load Reductions from main boom capacity
when lifting over main boom nose with extension erected (retracted):
(in lb) 2,300 2,150 2,000 1,950 1,900 1,850 1,800 1,750 1,700

13
NBT40-1 S/N xxxxxx
RATED LIFTING CAPACITIES IN POUNDS WITH STOWED EXTENSION
34 FT. - 142 FT. BOOM
ON OUTRIGGERS 50% EXTENDED (17.5 ft. spread) - 360°
Radius
in
Feet
#22
Main Boom Length in Feet
34 47-A 61-B 74-C 88-D 101-E 115-F 128-G 142
779,200
(74.9)
874,200
(73.1)
10 65,700
(69.4) 39,350 (75.6)
12 54,200
(65.7) 39,350 (73.1) 39,550 (77.4)
15 42,200
(59.8) 39,350 (69.2) 37,550 (74.5) 33,600 (77.7)
20 24,500
(48.9) 25,650 (62.3) 26,450 (69.5) 26,950 (73.7) 22,650 (76.7) 17,050 (78.8)
25 14,550
(35.7) 15,600 (55) 16,400 (64.2) 16,750 (69.4) 17,000 (73.4) 15,400 (75.9) 12,700 (78.3)
30 9,100
(13.5) 10,250 (46.9) 10,900 (58.7) 11,250 (65) 11,500 (69.8) 11,800 (73.5) 11,850 (75.8) 9,800 (78) 7,800 (79.5)
35 7,050
(38.4) 7,700 (53.4) 7,850 (60.9) 8,050 (60.9) 8,300 (70) 8,600 (73.5) 8,900 (75.8) 7,400 (77.7)
40 4,700
(26.5) 5,400
(47.1) 5,700 (56.3) 5,900 (56.3) 6,100 (67) 6,350 (70.8) 6,600 (73.7) 6,900 (75.9)
45 3,700
(40) 4,000 (51.3) 4,200 (51.3) 4,350 (63.7) 4,600 (67.9) 4,800 (71.1) 5,050 (74)
50 2,400
(31.7) 2,700 (46) 2,900 (46) 3,050 (60.3) 3,250 (64.9) 3,450 (68.4) 3,600 (71.6)
55 1,400
(20.5) 1,700 (40.1) 1,900 (40.1) 2,050 (56.8) 2,200 (61.9) 2,400 (65.7) 2,550 (69.1)
60 900
(33.4) 1,050 (33.4) 1,200 (53.2) 1,400 (58.9) 1,550 (63) 1,700 (66.7)
65 400
(25.2) 550 (49.4) 700 (55.8) 850 (60.3) 950 (64.2)
Minimum boom angle (°) for indicated length
(no load) 0 29.3 41 49 51.6 56.6
Maximum boom length (ft.) at 0° boom angle
(no load) 74
NOTE: ( ) Boom angles are in degrees.
#RCL operating code. Refer to RCL manual for operating instructions.
Lifting Capacities at Zero Degree Boom Angle
Boom
Angle Main Boom Length in Feet
34 47-A 61-B
0° 8,250
(31.5) 3,500 (44.5) 1,150 (58.5)
NOTE: ( ) Reference radii in feet. 80096915

14NBT40-1 S/N xxxxxx
RATED LIFTING CAPACITIES IN POUNDS WITHOUT STOWED EXTENSION
34 FT. - 142 FT. BOOM
ON OUTRIGGERS 0% EXTENDED (6.5 ft. spread) - 360°
(NOTE: Lifting over main boom nose with the 31-55' tele extension erected with outriggers in the fully
retracted position is prohibited.)
Radius
in
Feet
#31
Main Boom Length in Feet
34 47-A 61-B 74-C 88-D 101-E 115-F 128-G 142
736,500
(75)
827,350
(73.2)
10 17,250
(69.6) 18,050 (75.5)
12 11,750
(65.8) 12,450 (72.9) 12,900 (77.1)
15 7,250
(60.9) 7,900 (69.6) 8,200 (74.6) 8,250 (77.1)
20 2,950
(50.4) 3,600 (62.8) 3,950 (69.6) 4,150 (73.4) 4,350 (76.3) 4,500 (78.3)
25 600
(37.7) 1,250 (55.5) 1,600 (64.4) 1,800 (69.2) 1,950 (72.8) 2,050 (75.3) 2,200 (77.4)
30 550
(72.2) 650 (74.7) 700 (76.5) 800 (78.2)
Minimum
boom angle
(°) for
indicated
length (no
load)
37.5 50 60 65 69.5 71 73 74.5 76
Maximum
boom length
(ft.) at 0°
boom angle
(no load)
N/A*
NOTE: ( ) Boom angles are in degrees.
#RCL operating code. Refer to RCL manual for operating instructions. 80096916
*DANGER: Tipping Hazard - Before swinging boom, raise boom to "Minimum Boom Angle (°) for
indicated length (no load)". See load chart above. Failure to raise boom to "Minimum Boom Angle (°) for
indicated length (no load)" before swinging will result in the crane tipping over leading to potential death,
serious injury, or damage to the crane and property. DO NOT swing the boom until the boom is raised to the
"Minimum Boom Angle (°) for indicated lenght (no load)" for the length of boom.
Whenraisingtheboomfromtheboomrest: 1)Settheoutriggerjacksandlevelthecrane2)Engagetheswing
brake 3) Raise the boom from the boom rest 4) Once the "Minimum Boom Angle (°) for indicated length (no
load)" for the length of the boom has been reached, the swing brake may be released and lifting operations
may begin.

15
NBT40-1 S/N xxxxxx
RATED LIFTING CAPACITIES IN POUNDS WITH STOWED EXTENSION
34 FT. - 142 FT. BOOM
ON OUTRIGGERS 0% EXTENDED (6.5 ft. spread) - 360°
Radius
in
Feet
#32
Main Boom Length in Feet
34 47-A 61-B 74-C 88-D 101-E 115-F 128-G 142
735,700
(75)
826,550
(73.2)
10 16,450
(69.6) 17,400 (75.5)
12 10,950
(65.8) 11,800 (72.9) 12,450 (77.1)
15 6,450
(60.9) 7,250 (69.6) 7,750 (74.6) 7,850 (77.1)
20 2,150
(50.4) 2,950 (62.8) 3,500 (69.6) 3,750 (73.4) 3,900 (76.3) 4,150 (78.3)
25 600
(55.5) 1,150 (64.4) 1,400 (69.2) 1,550 (72.8) 1,700 (75.3) 1,900 (77.4)
30 450
(76.5) 600 (78.2)
Minimum
boom angle
(°) for
indicated
length (no
load)
37.5 50 60 65 69.5 71 73 74.5 76
Maximum
boom length
(ft.) at 0°
boom angle
(no load)
N/A*
NOTE: ( ) Boom angles are in degrees.
#RCL operating code. Refer to RCL manual for operating instructions. 80096917
*DANGER: Tipping Hazard - Before swinging boom, raise boom to "Minimum Boom Angle (°) for
indicated length (no load)". See load chart above. Failure to raise boom to "Minimum Boom Angle (°) for
indicated length (no load)" before swinging will result in the crane tipping over leading to potential death,
serious injury, or damage to the crane and property. DO NOT swing the boom until the boom is raised to the
"Minimum Boom Angle (°) for indicated lenght (no load)" for the length of boom.
Whenraisingtheboomfromtheboomrest: 1)Settheoutriggerjacksandlevelthecrane2)Engagetheswing
brake 3) Raise the boom from the boom rest 4) Once the "Minimum Boom Angle (°) for indicated length (no
load)" for the length of the boom has been reached, the swing brake may be released and lifting operations
may begin.

16NBT40-1 S/N xxxxxx
NOTES FOR AERIAL WORK PLATFORM OPERATION
GENERAL:
Before using the controls, the operator must be familiar with the warning and safety instructions of the equipment, aerial work platform, and proper
work practices.
1. Personnel in the platform must adhere to the instructions, warnings, cautions and dangers described on the decals located on the equipment and
platform.
2. This equipment and platform are NON-INSULATED.
3. Fall protection devices must be worn by each occupant in the platform.
4. Each fall protection lanyard must be individually attached to a designated anchor point. Attach only one lanyard per anchor point.
5. Additional safety equipment such as hard hat, eye protection and foot protection shall be worn in accordance to company and job site regulations.
6. Do not exceed the allowable platform capacity and reach.
7. All boom movements must be performed slowly and deliberately. Abrupt controls operation will result in abrupt movements.
8. When handling personnel, the requirements of the applicable national, state, and local regulations and safety codes must be met.
9. Handling of personnel is only permitted with full extension of all outrigger beams. Use only National Crane approved boom attached platforms.
10. If using an offsettable extension, do not use platform with extension deployed at 30 degree offset.
11. The maximum in-service wind speed is 20 m.p.h. on the boom capacities and 15 m.p.h. on the jib capacities.
12. The maximum outrigger pad load is 42,000 lb (for minimum chassis requirement).
SETUP:
1.Theequipmentshallbelevelandonafirmsupportingsurface.Dependingonthenatureofthesupportingsurface,itmaybenecessarytohave structural
supports under the outrigger floats to spread the load to a larger bearing surface.
2.Foroutriggeroperation,alloutriggersshallbeproperlyextendedwithtiresraisedfreeofmachineweightbeforeoperatingtheboomorpersonnelplatform.
3. When equipment is equipped with center front stabilizer, the front stabilizer shall be set in accordance with instructions in Operator's Manual.
4. Always level the equipment with the level indicator located at each outrigger control station.
5. When equipped with removable and/or extendible counterweight, the proper counterweight shall be installed and fully extended before and during
operation.
6. Unless approved by the manufacturer, do not travel with boom extension, jib or platform erected unless otherwise noted. Refer to Operator's Manual
for job-site travel information.
7. Inspect vehicle mounted aerial work platform prior to use each day.
OPERATIONAL PROCEDURE:
The following procedure should be used to begin operation of this aerial work platform:
Setup:
1. Position equipment at jobsite, set park brake, shift transmission to neutral, and turn OFF truck engine.
2. Start engine from lower control station (operators cab).
3. Set outriggers and level the equipment. Boom functions will operate only when leveled as per Operator's Manual.
4. Configure the RCL for crane operation, turn ON lower control power switch and set the platform on the ground.
5. Turn OFF the lower control power switch, Turn ON the remotes power switch to begin reconfiguration to aerial lift operation.
Reconfiguration for Aerial Lift:
1. Turn ON remote control transmitter by twisting the Emergency STOP knob clockwise and following the onscreen instructions to restart the
truck engine.
2. Using the remote control transmitter, stow the hoist rope & ATB weight.
3. Attach the aerial lift platform per Operator’s Manual.
4. Attach the remote control transmitter to the platform control station and connect the footswitch to the Anti-Two-Block connector at boom or
jib nose.
5. Configure the RCL for the aerial lift configuration matching setup.
6. Perform pre-start inspection and test of the aerial lift platform controls.
During Operation:
1. Enter personnel platform and attach safety harness per Operator's Manual.
2. Verify that the float selector is in the raised/up position and the brake selector is in the clockwise (CW) position. This allows the platform to
rotate freely as it is raised to the working position.
3. Depress the footswitch. Slowly move joystick, in the desired function direction, until the desired speed is obtained.
4. Immediately after the platform is raised to the working position, lock the brake by following the platform brake instructions. This prevents
free-swing during operation.
Ending Operation:
1. When operation is complete, return the aerial lift platform to ground level.
2. Remove the remote control from the platform controls station.
3. Detach safety harness and exit personnel platform per Operator's Manual.
Reconfiguration for Crane:
1. Configure the RCL for crane mode to stow the aerial lift platform.
2. Using remote control, detach the aerial platform per platform mounting instructions.
3. Stow jib, unstow loadline(s) and reeve hookblock(s) and ATB weight(s) as needed.
4. Stow aerial lift platform and place boom in boomrest.
5. Turn remotes power switch OFF and then press remotes Emergency STOP switch to turn OFF transmitter.
6. Stow outriggers using ground control stations.
7. See Operator's Manual for securing instructions.
DEFINITIONS:
1.Platform Capacity: The component of rated load capacity consisting of the weight of personnel and all items carried on or in the platform, including
the liner.
2.Platform Height: The distance measured at maximum elevation from the bottom of the platform to the ground.
3.Platform Reach: The distance measured horizontally from the centerline of the pedestal (rotation) to the outer edge (rail) of the platform.
4.Working Area: Areas measured in a circular arc about the center line of rotation as shown on the working area diagram.

17
NBT40-1 S/N xxxxxx
#11 - Platform on main boom, no stowed extension
#12 - Platform on main boom, extension stowed
#13 - Platform on 31 ft. tele extension
#14 - Platform on 55 ft. tele extension
RCL operating codes :