R&M Materials Handling, Inc
STAGEMAKER® COMPACT Concert Hoist
Springfield, Ohio USA
SM5 Manual
: 800 955-9967
Revision 1
web:
www.rmhoist.com
08/14/02
RM-SM5-MAN-2001-1-ENG
4-1
SECTION 4
OPERATION/MAINTENANCE
Typical Construction
While each electric chain hoist may have some slight variations in design/arrangement, all hoists
have same basic elements.
1.
Motor
- basic drive package.
2.
Chain Sprocket
- moves the load chain to lift and lower the load
3.
Gear case Assembly
- couples the motor to the chain sprocket
4.
Brake/Torque Limiting Device
- to stop and hold the load as well as to help prevent lifting of
excessive loads which may damage the hoist.
5.
Frame (Hoist Body)
- basic structural components that support the load to be handled.
6.
Bottom Block and Load Wheel
- includes bottom block and chain sprocket.
7.
Load Chain
- load chain and end connections for picking up the load.
8.
Limit Switch
– a device for over-travel protection. (Optional for some hoist configurations)
9.
Controls
- devices for supplying power to motor and reversing direction of the motor.
The following details the operation/maintenance instructions for each basic element. In Figure
4.1 the basic components inside the frame and the basic kinematics are shown.
Figure 4-1
1.
Motor
2.
Chain sprocket
3.
Gear
4.
Brake/limiter
