Table of Contents
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2.0 Table of Contents
Section
1.0 IMPORTANT SAFETY INSTRUCTIONS ....................................................................................................... 2
1.1 General Machine Safety ............................................................................................................................. 2
1.2 General Electrical Cautions ........................................................................................................................ 2
1.3 Safety for Drill Presses ............................................................................................................................... 2
2.0 Table of Contents ........................................................................................................................................... 4
3.0 About this machine ......................................................................................................................................... 5
4.0 Specifications ................................................................................................................................................. 6
4.1 Machine Environment ................................................................................................................................. 7
4.2 Power Supply Requirements ...................................................................................................................... 7
4.3 Overall Dimensions, J-720R ....................................................................................................................... 7
5.0 General Features and Terminology ............................................................................................................... 8
6.0 Set-Up and Assembly .................................................................................................................................. 10
6.1 Floor Diagrams for J-720R ....................................................................................................................... 10
6.2 Unpacking ................................................................................................................................................ 11
6.3 Machine Set-Up ........................................................................................................................................ 12
6.4 Electrical Connections .............................................................................................................................. 12
7.0 Operating Controls, J720R ........................................................................................................................... 14
8.0 Operation ..................................................................................................................................................... 15
8.1 Clamping work pieces .............................................................................................................................. 15
8.2 Tool insertion ............................................................................................................................................ 15
8.3 Tool Positioning over work piece .............................................................................................................. 15
8.4 Raising/lowering radial arm ...................................................................................................................... 15
8.5 Moving drill head along arm ..................................................................................................................... 16
8.6 Rotating arm on column ........................................................................................................................... 16
8.7 Setting spindle speed ............................................................................................................................... 16
8.8 Limit switches ........................................................................................................................................... 16
8.9 Setting feed rate ....................................................................................................................................... 16
8.10 Setting depth of cut using power feed .................................................................................................... 17
8.11 Spindle direction and power feed ............................................................................................................ 17
8.12 Manual feed: roughing operations .......................................................................................................... 17
8.13 Fine manual feed using power feed clutch ............................................................................................. 17
8.14 Tapping operations ................................................................................................................................. 18
8.15 Power ON/OFF ....................................................................................................................................... 18
8.16 Power ON light ....................................................................................................................................... 18
8.17 Coolant control ....................................................................................................................................... 18
8.18 Spindle motor controls ............................................................................................................................ 18
8.19 Turning off spindle drive ......................................................................................................................... 18
8.20 Using load ammeter ............................................................................................................................... 18
8.21 Arm/spindle control lever ........................................................................................................................ 19
9.0 Adjustments ................................................................................................................................................. 19
9.1 Clamping force ......................................................................................................................................... 19
9.2 Head/Rail Backlash .................................................................................................................................. 19
9.3 Feed lever/clutch engagement ................................................................................................................. 20
9.4 Spindle travel range ................................................................................................................................. 20
10.0 Spindle Speed Chart .................................................................................................................................. 21
11.0 Troubleshooting J-720R Radial Drill Press ................................................................................................ 21
12.0 User-maintenance ...................................................................................................................................... 22
12.1 General Cleaning ................................................................................................................................... 22
12.2 Lubrication .............................................................................................................................................. 22
13.0 Replacement Parts ..................................................................................................................................... 24
13.1.1 Lift Mechanism - Exploded View ........................................................................................................ 24
13.1.2 Lift Mechanism - Parts List ................................................................................................................. 25
13.2.1 Coolant Pump Assembly - Exploded View ......................................................................................... 26
13.2.2 Parts List for Coolant Pump Assembly - Parts List ............................................................................. 26
13.3.1 Base, Column, and Arm Assemblies - Exploded View ....................................................................... 27
13.3.2 Base, Column, and Arm Assemblies - Parts List ................................................................................ 28
13.4.1 Gear Box Assembly - Exploded View ................................................................................................. 30
13.4.2 Gear Box Assembly - Parts List .......................................................................................................... 31
13.5.1 Rear Gear Box Assembly I - Exploded View ...................................................................................... 34
13.5.2 Rear Gear Box Assembly II - Exploded View ..................................................................................... 35
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