CM-ET Series 622 - Manual (Page 7)

6
Hoist
Rated Load
Tons (Kg.)
1 ⁄
2
(500)
1 (1000)
2-10
(2000-10000)
Hand Chain
Chain Stock
Diameter
In. (mm)
0.197 (5)
0.236 (6)
0.394 (10)
0.194 (4.9)
No. of
Links
to
Gage
11
11
11
15
Max. Length
Allowable for
Used Chain
In. (mm)
7.031 (178.6)
8.531 (216.7)
14.125 (358.7)
14.812(376.2)
IMPORTANT: Do not use replaced chain for other pur-
poses such as lifting or pulling. Load chain may
break suddenly without visual deformation. For this
reason, cut replaced chain into short lengths to pre-
vent use after disposal.
Note that worn chain can be an indication of worn hoist components. For this rea-
son, the hoist’s chain guide roller and liftwheel should be examined for wear and
replaced as necessary when replacing worn chain.
Also, load chains are specially heat treated and hardened and should never be
repaired.
WARNING
!
Using other than CM-supplied load chain may cause the chain to jam in the
hoist and/or allow the chain to break and the load to drop.
TO AVOID INJURY:
Due to the size requirements and physical properties, use only CM Hoistaloy®
load chain in the Series 622 Hand Hois
t.
Before returning chain to service or after replacing a load chain, lubricate liberally
with Lubriplate Bar and Chain Oil 10-R (Fiske Bros. Refining Co.) or equal lubricant.
Remove excess lubricant from the chain by wiping with a cloth.
HAND CHAIN
Hand chain should be cleaned, inspected and gaged in the same manner as load
chain.
As received from the factory, the hand chain contains an unwelded link. This link can
be placed in a vise and twisted open to facilitate changing chain length. Please note
that opening and closing of the connecting link more than twice is not recommended.
Also, connecting links must not be made by cutting the weld side of a standard hand
chain link.
Hand chain should be assembled to handwheel free from twists with weld on vertical
link facing inwards towards handwheel and weld on horizontal link facing towards the
handwheel side plate.
Care must be taken to assure that there is no twist in the hand chain loop.
LUBRICATION
WARNING
!
The Lubricants used in and recommended for the Series 622 Hand Hoist may
contain hazardous materials that mandate specified handling and diposal pro-
cedures.
AVOID CONTACT AND CONTAMINATION:
Handle and dispose of lubricants only as directed in applicable material safety
data sheets and in accordance with applicable local, state and federal regula-
tions.
Lubricate load chain with a light coat of Lubriplate Bar and Chain Oil 10-R (Fiske
Bros. Refining Co.) or equal lubricant. Be sure the lubricant reaches the bearing sur-
faces between the links. Remove excess oil from the chain.
WARNING
!
Used motor oils contain unknown carcinogenic materials.
TO AVOID HEALTH PROBLEMS:
Never use used motor oils as a chain lubricant. Only use Lubriplate
Bar and Chain Oil 10-R as a lubricant for the load chain.
The hoist normally requires no additional lubrication, except for periodically
lubricating the load chain as indicated above or when the unit is disassem-
bled for periodic inspections, cleaning or repairs.
The brake is designed to operate dry. Do not use any
grease or lubricant on the braking surfaces. When
lubricating parts adjacent to the brake, do not use an
excessive amount of lubricant which could seep onto
the brake surfaces.
WARNING
!
Using any grease or lubricant on the braking surfaces will cause brake slip-
page and loss of load control which may result in injury and/or property dam-
age.
TO AVOID INJURY:
Do not use any grease or lubricant on braking surfaces. The brake is designed
to operate dry.
When the hoist is disassembled for periodic inspections, check the pawl for
free movement and apply a light coat of WD-40 (WD-40 Co.) lubricant to the
pawl stud.
When the hoist is disassembled for cleaning or repairs, the following loca-
tions should be lubricated using approximately 1 oz. (29.5mL) per hoist of
Molykote BR-2-S (Dow Corning Corp.) grease or equivalent—threads of
handwheel; gears; liftwheel rollers; gear bearing rollers; journals of chain
guide and dead end pin; sheave wheel rollers (3, 5 and 10 ton); hook ball
bearings (3 and 5 ton); hook collar journals (3 and 5 ton); dead end stud (3,
5 and 10 ton); bearing surface of hook knob (10 ton); hook block pin (10
ton); and hanger pin (10 ton).
NOTE: To assure extra long life and top performance,
be sure to lubricate the various parts of the hoist using
the lubricants specified above. If desired, these lubri-
cants may be purchased from CM. Refer to pages 8
and 10 for information on ordering the lubricants.
DISASSEMBLY
Two points of caution to be observed in disassembly are:
1. Loose rollers and bearing balls are used in various locations in the
units. Care must be taken so as to not lose or misplace these since
they may drop from the unit as the various parts are disassembled.
The number of rollers or bearing balls used are:
Hoist Rated
Load
Tons (Kg.)
1 (1000)
2-10
(2000-10000)
1/2 (500)
1 (1000)
2-10
(2000-10000)
3 -5
(3000-5000)
3 (3000)
5 (5000)
10 (10000)
Location
Intermed. Gear
Intermed. Gear
Liftwheel
Liftwheel
Liftwheel
Sheave Wheel
Hook
Hook
Sheave Wheel
Rollers
Required
12 Each End
11 Each End
33 Each End
30 Each End
35 Each End
29
*15
*16
36
*Bearing Balls