Harrington Hoists and Cranes RHN - Rhino Wire Rope Hoist - Manual (Page 46)

46
Table 5-5 Hoist (and Trolley) Inspection Methods and Criteria (continued)
Item Method Criteria Action
Pendant -
Housing Visual Pendant housing should be free of cracks and
mating surfaces of parts should seal without gaps. Replace
Pendant - Wiring Visual Wire connections to switches in pendant should
not be loose or damaged. Tighten or repair
Pendant and
Power Cords Visual, Electrical
Continuity Surface of cord should be free from nicks,
gouges, and abrasions. Each conductor in cord
should have 100% electrical continuity even when
cord is flexed back-and-forth. Pendant Cord
Strain Relief Cable should absorb the entire load
associated with forces applied to the pendant. Replace
Pendant - Labels Visual Labels denoting functions should be legible. Replace
Warning Labels Visual Warning Labels should be affixed to the hoist (see
Section 1.2 ) and they should be legible.
Replace
Hoist Capacity
Label Visual The label that indicates the capacity of the hoist
should be legible and securely attached to the
hoist. Replace
Table 5-6 Bottom Hook Dimensions
k Measured When New*:
_____________________
Hook Capacity Code
(u) Dimension
inch (mm)
(t) Dimension
inch (mm)
Standard Discard Standard Discard
RHN02(D/U) 1.89 (48) 1.80 (45.6) 1.50 (38) 1.42 (36.1)
RHN03(D/U) 1.89 (48) 1.80 (45.6) 1.50 (38) 1.42 (36.1)
RHN05(D/U) 2.28 (58) 2.17 (55.1) 1.77 (45) 1.68 (42.75)
RHN08(D/U) 2.64 (67) 2.51 (63.65) 2.09 (53) 1.98 (50.35)
RHN10(D/U) 2.64 (67) 2.51 (63.65) 2.09 (53) 1.98 (50.35)
RHN15U 3.35 (85) 3.18 (80.75) 2.64 (67) 2.51 (63.65)
RHN15D 4.17 (106) 3.96 (100.7) 3.35 (85) 3.18 (80.75)
RHN20D 4.17 (106) 3.96 (100.7) 3.35 (85) 3.18 (80.75)
* The “k” dimension should be measured when the hook is new – this becomes a reference measurement.
Subsequent measurements are compared to this reference to make determinations about hook
deformation/stretch. See
Section 5.7 , “Hooks – Stretch”.