Manitowoc National Crane NBT40 Series User Manual

National Crane Published 4-23-2018 Control # 239-11 6-13
6
NBT40 SERIES OPERATOR MANUAL MAINTENANCE CHECKLIST
SPECIFICATIONS
Hydraulic
Hydraulic Pump......................................................................75.5 gpm (286 1/min) at 2200 rpm, Variable
displacement, axial piston with load sense
Displacement .................................................................8.54 in
3
/rev (140 cc/rev)
Pressure Rating (rated).................................................. 4600 psi (320 bar)
Pressure Rating (peak ...................................................5075 psi (350 bar)
Case Refill Capacity........................................................37 gal (1.40 liter)
Minimum Operating Speed ............................................600 rpm
Outrigger System ...................................................................3250 (+/-100) psi
Air Conditioner .......................................................................3500 (+/-100) psi
Boom Up ................................................................................35 gpm at 4550 psi
Boom Down ...........................................................................17 gpm at 1000 psi
Telescope Extend ..................................................................35 gpm at 2900 psi
Telescope Retract ..................................................................17 gpm at 2250 psi
Aux/Main Hoist System & Relief.............................................35 gpm at 4300 psi
Swing .....................................................................................18 gpm at 3100 (+200/-00) psi
Swing Park Brake...................................................................Hydraulic released disc, released at 175 psi (12 bar)
Reservoir Capacity.................................................................100 gal (351.3 L)
Reservoir Return Filter ...........................................................5 micron
Reservoir Suction Filter..........................................................25 micron
Air Conditioner
Air Conditioner Hydraulic System ..........................................3500 (+/-100) psi
Minimum Evacuation Time ....................................................30 minutes
Refrigerant Charge Levels .....................................................2.0 pounds (+/- 0.5 ounce)
Additional Pag Oil Required Above 6 ounces in Compressor 4.0 ounces
Hoist System
Wire Rope:
Length............................................................................450 ft (137 m)
Diameter (Rotation Resistant)........................................5/8 in. (16 mm)
Nominal Breaking Strength ............................................56,400 lb (25,582 kg)
Operating Pressure................................................................4300 (+/-100) psi (296.5 bar)
Flow .......................................................................................35 gpm (2.21L/s)
Hoist Line Pull/Layer
Layer Low Speed kN (lb) High Speed kN (lb)
1 66.7 (15,000) 33.4 (7,516)
2 60.2 (13,529) 30.1 (6,765)
3 54.7 (12.299) 27.4 (6,150)
4 50.2 (11,275) 25.1 (5,637)
5 46.3 (10,407) 23.1 (5,204)

Manitowoc National Crane NBT40 Series Specifications

General

Brand	Manitowoc
Model	National Crane NBT40 Series
Category	Construction Equipment
Language	English