
Stellar®4421 Telescopic Crane Owner’s Manual | Page iii
Table of Contents
Introduction .............................................................................................................................. iv
Chapter 1 - Specications........................................................................................................... 1
Model 4421 Specications ....................................................................................................... 1
Capacity Chart - Decal PN 70301 .......................................................................................... 2
Dimensional Drawing 1 ............................................................................................................ 3
Dimensional Drawing 2 ............................................................................................................ 4
Chapter 2 - Installation ................................................................................................................ 5
General Installation ..................................................................................................................5
Installer Notice ........................................................................................................................ 5
Torque Data Chart ................................................................................................................. 6
Installation Overview .............................................................................................................7
Control Kit (12V CDT Non-Boost) - PN 69982 .......................................................................... 8
Control Kit (Cradle CDT Non-Boost) - PN 69984 ....................................................................9
Control Kit (V2 Cradle 12V) - PN 70022 ................................................................................ 10
Control Kit (V2 Cradle) - PN 70023 ........................................................................................ 11
Wiring Diagram (Electrical Version) ......................................................................................12
Hydraulic Kit (V2 12V CDT) - PN 70005 .................................................................................. 13
Hydraulic Kit (V2 CDT) - PN 70006 .........................................................................................14
Hydraulic Kit (V2) - PN 70018 ................................................................................................. 15
Hydraulic Kit (V2 12V) - PN 70019 .......................................................................................... 16
Valve Bank - PN 50591 ...........................................................................................................17
Valve Bank - PN 72666 ...........................................................................................................18
Hydraulic Installation .............................................................................................................. 19
Hydraulic System .....................................................................................................................20
Face Seal/O-Ring Size Chart ................................................................................................. 21
Stability Procedure ................................................................................................................. 22
Crane Load Level Indicator .................................................................................................. 23
Decal Placement - PN 70300 ................................................................................................24
Chapter 3 - Assembly Drawings ............................................................................................... 25
Base Assembly - PN 19998 .....................................................................................................25
Gear Bearing - PN 16653 ........................................................................................................ 26
Mast Assembly (CDT Version) - PN 69394 ............................................................................. 27
Mast Assembly (Non-CDT Version) - PN 70063 .................................................................... 28
Power Unit Assembly (Electric Version Only) - PN 57939 .................................................... 29
Main Boom Assembly (CDT Version) - PN 69392 .................................................................30
Main Boom Assembly (Non-CDT Version) - PN 70026 ......................................................... 31
Extension Boom Assembly - PN 69399 .................................................................................. 32
Extension Boom Assembly (1 Hyd/1 Manual) - PN 69892 ................................................... 33
Main Cylinder Assembly - PN 70027 ...................................................................................... 34
Extension Cylinder Assembly - PN 69477 .............................................................................. 35
Extension Cylinder Assembly (1 Hyd/1 Manual) - PN 69431 ............................................... 36
Cable & Hook Assembly - PN 57597 ..................................................................................... 37
5-Function Radio Transmitter Assembly - PN 67894 ............................................................. 38
Chapter 4 - Replacement Parts ................................................................................................ 39