Harrington Hoists and Cranes ER Large Capaciy Hoist - (ER1) - Manual (Page 14)

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Table 5-3 Hoist Inspection Methods and Criteria
Use this table in conjunction with Table 5-3 of the EROM. The entries in this table replace in their entirety
the corresponding entries in Table 5-3 of the EROM.
Item Method Criteria Action
Motor Brake Measure, Visual Motor brake gap should be adjusted to the
distance shown in
Table 6-3 before measuring
the brake wear. Brake lining dimension “A”
should not be less than discard value listed in
Table 5-6 . Refer to Section 6.3 of the EROM for
gaining access to motor brake and for adjustment
and inspection procedures. Braking surfaces
should be clean, free of grease/oil and should not
be glazed.
Adjust, Repair or
Replace as
required.
Table 5-4 Top Hook & Bottom Hook Dimensions
“k” Measured When New:
Top: _________________________
Bottom: ______________________
"u" Dimension
inch (mm)
"t" Dimension
inch (mm)
Capacity Code
Nominal "k"
Dimension*
inch (mm)
Standard Discard Standard Discard
080S, 100L, 100S 4.72(120) 2.87(73) 2.60(66) 1.89(48) 1.69(43)
150S 5.04(128) 3.43(87) 3.07(78) 2.36(60) 2.13(54)
200S 5.57(141.5) 3.92(99.5) 3.54(90) 2.76(70) 2.48(63)
* These values are nominal since the dimension is not controlled to a tolerance. 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 of EROM, “Hooks - Stretch”.