Rapid 7500 136, Инструкция по установке, эксплуатации и обслуживанию

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SECTION 17: M
AINTENANCE
117 of 143
Motors Inspection:
1. Inspect motor e v ery 3 months or 500 ho u rs of operation, w hich e v er
occ u rs first. Keep the motor clean and v ent openings clear.
Lubrication:
1. Motors w ith grease fittings m u st b e l ub ricated b ased on the ta b le b elo w .
2. A high grade b all or roller b earing grease m u st b e u sed. Recommended
grease for standard ser v ice is Polyrex EM (Exxon Mo b il). Other com-
pati b le greases incl u de; Texaco Polystar, Rykon Premi u m #2, Pennzoil
Pen 2 L ub e and Che v ron SRI.
3. Motors w itho u t grease fittings are sealed for life and do not req u ire re-
l ub rication.
Instructions for Lubricatin g
Before greasing, b e s u re fittings are clean and free from dirt. Remo v e grease
relief pl u g or plate and, u sing a lo w -press u re grease g u n, p u mp in the
req u ired grease. Do not o v er-grease. Rel ub rication inter v als are specified in
the ta b le a b o v e. After rel ub ricating, allo w motor to r u n for 10 min u tes b efore
replacing relief hard w are.
NOTE: In general it is not recommended to mix greases of different b rands.
The mixing of different types of thickeners may destroy the composition and
physical properties of the grease. In the e
v ent that a different grease is
req u ired b y the end u ser, the follo w ing steps can b e taken. Using the instr u c-
tions for l ub rication, open grease o u tlet and p u rge the system as m u ch as
possi b le of the old or u n w anted grease. Repeat this same operation after 1
w eek of ser v ice. Cons u lt Rapid Engineering LLC or the motor man u fact u rer
for f u rther recommendations on grease compati b ility.
Table 1 8 : Motor Lubrication Intervals
Note: These intervals are based on severe duty. Over lubricating
bearings could result in reduced motor life.
NEMA Frame Size (Motor HP) Rated at 1800 RPM (Hrs)
Up to 210 (3 - 5) 6,000
O v er 210 to 280 (7.5 - 20) 4,750
O v er 280 to 360 (25 - 50) 3,700