Maintenance
205
96-8000 rev R June 2007
VR-SERIES A IR F ILTER
The VR mills are equipped with an air filter (P/N 59-9088) for the motor housing. The recommended replacement
interval is monthly, or sooner depending on your machining environment.
The air filter is located on the rear of the head cover. To remove the air filter, simply pull up on the filter; the filter will
slide upward out of its bracket. To replace the filter, slide in the new air filter, oriented properly to filter air into the
motor housing. Filter air-flow direction is determined by a sticker on the replacement filter.
(Back View)
Filter Slides Out
Air Filter
(59-9088)
5AX Head
Cover Back
Plate
(25-4362)
VR-11 Air Filter Location
VR-SERIES A IR S PRING C OUNTERBALANCE R EPLACEMENT
The counterbalance air spring and rod ends should be replaced every two (2) years.
1. Verify that the Axis is at 0 degrees before beginning. Press E-stop before doing any disassembly.
2. Remove sheet metal cover and loosen the two 3/8-16 SHCS (1).
3. Back out the 1/4-20 SHCS (2), and tighten the two 3/8-16 SHCS (1) this will keep the pre-load cam secure while
the next step is accomplished.
4. Remove 3/8-16 SHCS that mount Air Spring and Rod Ends (3).
5. Tighten the rod ends onto the Air Spring and secure the Air Spring using the two 3/8-16 SHCS removed in step 4.
1
3
2
Air Spring
P/N 93-4367
6. Slightly loosen the 3/8-16 SHCS (1). Screw in the 1/4-20 SHCS to force pre-load cam counterbal-
ance down (this will push the air spring inward). Tighten this adjusting bolt until the slots in the
cam have contacted the tops of the mounting bolts. Tightening the two 3/8-16 SHCS (1), these will
hold the pre-load cam in place.
7. Replace the sheet metal, reset the E-stop and clear the alarms.
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