CM Lodestar A, Operating, Maintenance & Parts Manual

Page: 21 / 128

21
00001996 (REV AC) 627NH October 2014
MAINTENANCE
LOAD-LIMITER
The Load-limiter should operate for the normal life of the
hoist without service. The device has been calibrated at the
factory for a specifi c model of hoist. For proper overload
protection, be sure before installing a Load-limiter that it is
correct for the unit.
Models
Load-Limiter Part
Number
Load-Limiter ID
(marked on
Load-limiter)
A,A-2,B,B-2, E, E-2 C00000240 240
AA,AA-2, C, C-2, F, F-2,
H, H-2
C00000241 241
J, J-2, L, L-2, R, R-2,
RT, RT-2
C00000242 242
JJ. JJ-2, LL, LL-2, RR
RR-2, RRS, RRT, RRT-2
C00000243 243
The lubricants used in and recommended for the Lodestar Hoist
may contain hazardous materials that mandate specifi c handling and
disposal procedures.
TO 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 regulations.
HOIST LUBRICATION
GEARS
NOTE: To assure extra long life and top performance, be
sure to lubricate the various parts of the Lodestar Hoist
using the lubricants specifi ed. If desired, these lubricants
may be purchased from CM. Refer to Table of Contents for
information on ordering the lubricants.
The gearbox is packed at assembly with grease and should
not need to be renewed unless the gears have been removed
from the housing and degreased.
If the gears are removed from the housing, wipe the excess
grease off with a soft cloth and degrease the gears and
housings. Upon reassembly, add grease to gears and
housing.
Models A to H hoists require 7 fl . oz. of grease. Model J to
RRT excluding RRS hoists require 15 fl . oz. Of grease.
For model RRS hoist: fully coat gear teeth and pack gear
box, using a total of 22 fl uid ounces of grease
1. Apply 7 ounces of grease on the fi nal gear stage, prior to
installing the intermediate frame
2. Apply 15 ounces of grease on the 1st 2 gear stages, prior
to installing the back frame.
Also, coat the spline on the end of the drive shaft with a
Molydisulphide lubricant such as “Super Herculon”.
• The limit switch gears are of molded polymer and
require no lubrication.
• Apply a light fi lm of machine oil to the limit switch shaft
threads at least once a year.
BEARINGS
• All bearings and bushings, except the lower hook thrust
bearing, are pre-lubricated and require no lubrication.
The lower hook thrust bearing should be lubricated at
least once a month.
CHAIN GUIDES, LIFTWHEEL AND LOWER SHEAVE WHEEL
• When the hoist is disassembled for inspection and/
or repair, the chain guides, lower sheave wheel (on
double chain units) and liftwheel must be lubricated with
Lubriplate Bar and Chain Oil 10-R (Fiske Bros. Refi ning
Co. or equivalent) prior to reassembly. The lubricant
must be applied in suffi cient quantity to obtain natural
runoff and full coverage of these parts.
LOAD CHAIN
A small amount of lubricant will greatly increase the life of
load chain. Do not allow the chain to run dry.
Keep it clean and lubricate at regular intervals with Lubriplate
Bar and Chain Oil 10-R (Fiske Bros. Refi ning Co.) or equal
lubricant. Normally, weekly lubrication and cleaning is
satisfactory, but under hot and dirty conditions, it may
be necessary to clean the chain at least once a day and
lubricate it several times between cleanings.
When lubricating the chain, apply suffi cient lubricant to
obtain natural run-off and full coverage, especially in the
interlink area.
Used motor oils contain known 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.
TROLLEY LUBRICATION
See appropriate trolley manual.
EXTERIOR FINISH
The exterior surfaces of the hoist and trolleys have a durable,
scratch resistant baked powder coating. Normally, the
exterior surfaces can be cleaned by wiping with a cloth.
However, if the fi nish is damaged, compatible touch-up paint
can be purchased from CM. Refer to page138 for information
on ordering the paint.
TEMPERATURE RATING
Normal ambient operating temperature, unless otherwise
specifi ed, range from 0º f (-17ºc) to 150º f (60ºc). Contact
factory for ambient temperature solutions outside this stated
range.
SOLID STATE REVERSE SWITCH
(115-1-60/230-1-60 Units Only)
Above an ambient temperature of 104°F. (40° C.), the
frequency of hoist operation should be limited to avoid
overheating the solid state reverse switch. Even at
temperatures less than 104° F. (40° C.), high duty cycle,
frequent starting or reversing, excessive inching, jogging
or plugging may overheat the solid state reverse switch.
Overheating the switch will cause it to malfunction, and this
in turn will overheat the motor and/or damage the solid state
reverse switch.