Joyce MWJ2410 - Manual (Page 4)

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6. In a system with shafts, miter boxes, etc., confirm that the shafts and jacks operate
without binding or excessive force before powered drive devices are engaged.
7. When fastening the load to a jack, ensure that the jack is in the retracted position. This
positions the load accurately with respect to the jack screw centerline. Never pull the
screw to one side to make connection with your structure. Fully extend the jack to
ensure that the load is aligned with the lifting screw.
8. All jacks are to be mounted with S.A.E. Grade 8 bolts or equivalent.
9. Torque all mounting bolts in a symmetric pattern to avoid damage to the sleeve.
10. Shaft and coupling guards are the responsibility of the user.
11. Optional limit switches furnished with the jacks are NOT preset and require field
adjustment before use.
Section II
Maintenance
2-1 Lubrication
1. Standard jacks are lubricated before leaving the factory.
2. For normal operation, jacks should be greased at least once per month. Under
extended use, grease twice monthly or as conditions dictate. Grease thru the fitting
on the jack with hand or power operated equipment. Grease with No. 1 Consistency
Grease. Do not allow jacks to operate un-lubricated. It is the responsibility of the user
to maintain sufficient lubrication of the jack.
3. The products listed below are recommended by the lubricant manufacturers to meet
the requirements for normal operation. The listing of brand names is solely for the
convenience of users of Joyce equipment and their lubricant suppliers; it does not
constitute any endorsement. Joyce/Dayton assumes no responsibilities for the quality,
performance or availability of any listed products
COMPANY
BRAND NAME
Mobilgrease ........................................XHP 461
Mobil Oil...............................................SHC PM 460
Mobil Oil...............................................XHP 221
Shell Oil................................................Retinax HD NLGI 1
4. For operation above 250° F or extreme loading, c onsult an application engineer at
Joyce Dayton Corporation.
5. Do not operate jack without lubrication.
6. Total grease capacity by jack type:
Jack Capacity Shots Approx. Grease
Weight
10 kN 5 1.8 oz.
25 kN 13 4.5 oz.
50 kN 26 9 oz.
100 kN 50 17 oz.