Porter-Cable 7424 Sander User Manual


 
7
EXTENSION CORD SELECTION
If an extension cord is used, make sure the conductor size is large enough to
prevent excessive voltage drop which will cause loss of power and possible
motor damage. A table of recommended extension cord sizes will be found
in this section. This table is based on limiting line voltage drop to 5 volts (10
volts for 230 volts) at 150% of rated amperes.
If an extension cord is to be used outdoors it must be marked with the suffix
W-A or W following the cord type designation. For example – SJTW-A to
indicate it is acceptable for outdoor use.
Length of Cord in Feet
115V 25 Ft. 50 Ft. 100 Ft. 150 Ft. 200 Ft. 250 Ft. 300 Ft. 400 Ft. 500 Ft.
230V 50 Ft. 100 Ft. 200 Ft. 300 Ft. 400 Ft. 500 Ft. 600 Ft. 800 Ft. 1000 Ft.
0-2 18 18 18 16 16 14 14 12 12
2-3 18 18 16 14 14 12 12 10 10
3-4 18 18 16 14 12 12 10 10 8
4-5 18 18 14 12 12 10 10 8 8
5-6 18 16 14 12 10 10 8 8 6
6-8 18 16 12 10 10 8 6 6 6
8-10 18 14 12 10 8 8 6 6 4
10-12 16 14 10 8 8 6 6 4 4
12-14 16 12 10 8 6 6 6 4 2
14-16 16 12 10 8 6 6 4 4 2
16-18 14 12 8 8 6 4 4 2 2
18-20 14 12 8 6 6 4 4 2 2
Nameplate Ampere Rating
FUNCTIONAL DESCRIPTION
FOREWORD
The Porter-Cable Random Orbit Polisher performs various tasks including
polishing, rubbing, and general cleaning jobs. Used as a Random Orbit
Sander the tool provides rapid stock removal with 80 to 100 grit paper and
swirl-free finishing with 120 to 150 grit paper.
RECOMMENDED EXTENSION CORD SIZES FOR USE WITH PORTABLE ELECTRIC TOOLS
ASSEMBLY
AUXILIARY HANDLE
An auxiliary handle (A), Fig. 1, is
furnished with the tool. The auxiliary
handle may be installed on either
side of the front housing to facilitate
either right-handed or left-handed
operation.
THIS HANDLE
SHOULD BE USED AT ALL TIMES
TO MAINTAIN COMPLETE
CONTROL OF THE TOOL.
Fig. 1
A