6-2-2. Hook
Chart 1:
Chart 2:
NORMAL Hook opening
BAD opening
(Do NOT use it)
6-2-2-1. Do NOT use it if the hook is cracked or deformed
6-2-2-2. The Wear and tear’s limitation of H-value is under 5% of standard
thickness
6-2-2-3. If the opening width (B at Chart 1) of hook has been deformed, please
replace it immediately for safety
6-2-3. Sheave
The wear and tear limitation of CAST IRON SHEAVE is under 30% of wire rope’s O.
D.; however, the wear and tear limitation of INNER WALL of sheave would depend
on its condition
6-2-4. Gear
The wear and tear limitation of GEAR depends on the thickness above the pitch
circle.
Thickness
Pitch circle
diameter
H1
H2
B
Wearing
Gap
Blank
diameter
Dedendum
diameter
Summary of Contents for M Series
Page 1: ...M series OPERATIONS MANUAL ...
Page 24: ...FiTOP 20160620 ...