Harrington Hoists and Cranes NER2 Smart Limits Supplement - Manual (Page 8)

5.0 Inspection
5.7 Inspection Methods and Criteria
5.7.1 This section covers the inspection of specific items. The list of items in this section is based on
those listed in ANSI/ASME B30.16 for the Frequent and Periodic Inspection. In accordance with
ANSI/ASME B30.16, these inspections are not intended to involve disassembly of the hoist.
Rather, disassembly for further inspection would be required if frequent or periodic inspection
results so indicate. Such disassembly and further inspection should only be performed by a
qualified person trained in the disassembly and re-assembly of the hoist.
Table 5-10 Smart Limit Components Inspection Methods and Criteria
Item Method Criteria Action
Mounting screws Visual Mounting screws should not be loose.
Tighten or replace
as required.
Smart Limit precision Function
Precision of Smart Limit should not exceed +/-
10mm (0.4in). Repair or replace
as required.
Photosensor mount Visual Photosensor mount should not be loose.
Tighten or replace
as required.
Trigger wheel mount Visual Trigger wheel mount should not be loose.
Tighten or replace
as required.
Micro-computer
assembly mount
Visual Micro-computer assembly should not be loose.
Tighten or replace
as required.
Lead wire guard and lead
wires (for 1/8 ton to 1/2
ton units)
Visual
Lead wires should be located against the lead
wire guard to prevent them from getting
entangled with the trigger wheel.
Move the wires to
proper location.
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