 |
|||
|
|
|||
| ||||||||||
|
|  MIL-H-904J
TABLE VII. Type H, hook suspension, convertible capacity, roller and link chain.
3.8.2.2 Chain stop. Type H convertible capacity may have a chain stop attached to the load _
chain end in lieu of securing the chain to the hoist. The chain stop shall prevent unreeving of the
hoist and shall be removable.
3.8.3 Lever.
The operating lever length for type H shall be a maximum of 34 inches measured
from the center
of the yoke pin to the extreme end. The hoist shall engage to lift or lower with
a lever stroke
of 36 degrees or less. The hoist shall permit a lever power stroke through a
minimum arc of
60 degrees.
3.8.4 Control devices. When not under load, it shall be possible to extend the reach of the
hoist without using the lever (freewheeling feature). Other control devices on the hoist shall be
simple, reliable, and arranged for ease of operation by the hoist operator. Operating instructions
shall be legible and of a permanent character.
3.9 Lubrication. Means shall be provided for lubrication of all moving parts of hoists and
trolleys. Where life-lubricated bearings are used, no means of external lubrication is required.
Lubricants in accordance with DOD-G-24508 and MIL-L-17331 shall be used when external
lubrication is required.
3.10 Painting. When specified (see 6.2), exposed surfaces, except hooks and chains, shall be
cleaned, pretreated, and finish coated in accordance with method I as specified in 3.10.1. Method
II (see 3.10.2) may be used if method I is not specified.
|
|
Privacy Statement - Press Release - Copyright Information. - Contact Us |
Click
here for thousands of PDF manuals