254
96-8000 Rev AC
May 2010
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oUnterbalance
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harGinG
Attach the CGA 580 fitting end of the charge/discharge kit to the source pres
-
sure. Ensure T-handle of the gas chuck is turned completely counterclockwise.
Attach charge/discharge kit by tightening gas chuck to the Schrader valve fin
-
ger tight, then use a wrench to lightly tighten. Pressurize the system to required
pressure as listed in the following tank pressure requirements chart.
NOTE: For VF-6/8, follow installation procedure for each hydraulic tank.
NOTE: Use regulated dry nitrogen gas (welding grade acceptable) that
accepts a right-hand thread CGA 580 fitting. Do not use compressed air,
oxygen, or flammable gas. Refer to the table below and verify pressure ac
-
cording to machine and spindle head position, and verify cylinder is seated
in counterbore.
Machine
Tank Pressure at Top of Travel
VF-3/4
1150 psi
VF-3YT/50
1100 psi
VF-5/40
875 psi
VF-5/50
1100 psi
VF-6/7/10 50T
1150 psi
VF-8/9/11 50T
1550 psi
VR
1025 psi
VS
1250 psi
HS
1250 psi
EC-630/1600/2000/3000 800 psi
vr-S
erieS
The following items must be performed in addition to the regular maintenance
items.
Interval Maintenance Performed
Monthly
• Grease all pivot points on the tool changer assembly.
• Check the oil in the three (3) areas of the head. The A-axis covers need to
be removed to access the filler cap and the sight glass. The B-axis filler is on
the outside of the casting. Add Mobil SHC-634 to the fill port at the top of the
casting.
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