Jet 691050, Operating Instructions And Parts Manual

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Figure 11-9: Leadscrew backlash adjustment
12.0 Recommended speed for mill and drill operations
Mill cutting speed recommended (mm/min) V=DN/1000
V cutting speed (mm/min)
Material Heavy cutting Processing cutting
Cast iron 30-40 45-90
Malleable iron 37-45 45-90
Steel (soft) 60-90 75-105
Steel (medium) 454-67 52-75
Steel (hard) 24-37 55-75
Cast steel 24-30 55-75
Aluminum 240-300 300-360
Brass 105-180
150-300
Bronze 52-75 75-90
Magnesium alloy
240-300 300-600
Zinc alloy 120-240 210-450
Drill speed (RPM) recommended:
5mm hole 1000-1500
10mm hole 500-800
13mm 300-500
20mm 150-300
Table 6
13.0 Replacement Parts
Replacement parts are listed on the following pages. To order parts or reach our service department, call 1-
800-274-6848 Monday through Friday, 8:00 a.m. to 5:00 p.m. CST. Having the Model Number and Serial
Number of your machine available when you call will allow us to serve you quickly and accurately.
Non-proprietary parts, such as fasteners, can be found at local hardware stores, or may be ordered from JET.
Some parts are shown for reference only, and may not be available individually.