11921 Slauson Ave. Santa Fe Springs, CA. 90670 (800) 227-4116 FAX (888) 771-7713
14
Also, do the Semi-annual or
2500 Cycles and Quarterly
or 1250 Cycles checks.
To prevent unnecessary wear
on parallel arms, check for worn
thrust bearings as follows. Po-
sition the platform 1”-2” above
ground (FIG. 14-1). Push against
the shackle (Item 1, FIG. 14-1A)
and measure clearance (Item 1,
FIG. 14-1A). Then, push against
other side of shackle (Item 2,
FIG. 14-1A) and measure clear-
ance (Item 2, FIG. 14-1A). Re-
peat for LH side shackle. If clear-
ance is less than 0.050”, replace
thrust bearing. See PARTS
BREAKDOWN section for re-
placement parts.
PLATFORM ABOVE GROUND LEVEL
FIG. 14-1
CHECKING SHACKLE
CLEARANCES (RH SIDE SHOWN)
FIG. 14-1A
0.050”
(MIN.)
0.050”
(MIN.)
PARALLEL
ARM
SHACKLE
THRUST BEARINGS
1”- 2”
PERIODIC MAINTENANCE CHECKS - Continued
PERIODIC MAINTENANCE - Continued
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