DE-STA-CO PN500 - Manual (Page 27)

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SECTION 5: Adjustments (continued)
d. Apply power to the unit and check for clutch slippage.
NOTE: When clutch is not slipping, entire clutch will rotate as a single unit.
When clutch is slipping body and cone (number 3, Figure 14) will not rotate
with the other parts of the clutch. Small amounts of clutch slippage can be
difficult to determine. To aid in providing if the clutch is slipping, use a grease
pencil or felt tip marker and draw a line across face of nut (number 6, Figure 14)
and along body (number 3, Figure 14). If clutch is slipping, the line on nut
(number 6, Figure 14) and body (number 3, Figure 14) will move relative to
each other.
DO NOT LET CLUTCH SLIP ANY LONGER THAN NECESSARY OR
CLUTCH MAY HEAT UP RESULTING IN UNPREDICTABLE OPERATION
AFTER IT COOLS.
e. Repeat steps a through d until there is positively no clutch slippage.
5.3.4. Lubrication:
a. Clutches are grease packed at the factory and should not require additional
lubrication. If clutch is subject to consistent slippage and heating, remove pipe
plug (number 9, Figure 14) and insert your standard grease fitting, lubricate
with Lithium EP grease. Do not use air pressure gun!