electric hoist maintenance

- Nov 06, 2017-

Mounting of Hoist

1. Hoists with Trolleys

Hoists with Trolleys are defined as hoists supplied within a frame with trolleys attached. Note

the trolleys must be located as shown in the Outline Drawing supplied in this service manual.

This hoist has been designed to fit only the track designated on the customer’s order . 

 This track size is noted on the Outline Drawing included in this manual. Do not attempt

to install this hoist on any other size track. Contact Electro Lift if you find your track size 

is different than indicated on the Outline Drawing.

Your hoist has been shipped with the trolleys attached to the hoist frame with the proper size

mounting bolts and nuts. The trolleys are correctly located according to the Outline Drawing

to support the hoist load. The mounting bolts are sized also to support the hoist load and

should not be replaced with any other fastener.

The hoist may be installed on the track in one of two manners:

a. At end of track:

Raise the hoist with trolleys attached to the height of the track. Slide trolley wheels

horizontally into the track so the trolley wheels rest on the inside of the bottom track


b. In the middle of the track:

Remove the trolley side plates at the point where the bolts join the bottom of the side plate

to the trolley yoke. Note the trolley wheels will remain attached to the side plates. Raise

the hoist and position the hoist under the track. Place the wheels inside the track flanges.

Reattach the side plates to the trolley yokes. Note the trolley yokes are attached to the

hoist with the Mounting Bolts.

2. Stationary Hoists without Trolleys

Stationary Hoists without Trolleys are defined are as hoists within a frame without trolleys

attached. They may also be overhead or floor mounted hoists supported without a frame on

either brackets or steel base plates.

Refer to the Outline Drawing supplied in this manual for the number and size of mounting

holes. The customer is responsible for determining and providing all attachment fasteners.

Operation of Hoist

A. Safe Hoist Practices

Hand operated and electric hoists and trolleys of all types are designed with the safety of the

operating personnel first in mind. Your own safety and that of your fellow workers will be

assured when overhead materials handling equipment is used as recommended by the

manufacturer. Disregarding such recommendations endangers life and property. Following are

the basic safety rules worthy of your careful consideration and attention.

1. Do not load beyond the rated capacity.

2. Do not use any overhead materials handling equipment for personnel.

3. Conduct a periodic visual inspection for signs of damage or wear. Particular attention should

be paid to the cable and hook. If the cable shows signs of wear or damage, or if the hook is

distorted or opened, call this to the attention of the safety engineers before loading the 


4. Do not use hoisting cables as a substitute for slings -- Use slings only. Cable or chain 

slings should be of proper size and type for load handling -- never use slings showing physical

damage of any degree.

5. Whenever the hoist is lowered in such a manner as to take the load off the wire rope, the

operator should determine, before again making a lift, if the wire rope is properly reeved, on

the drum.

6. Stand Clear of all loads –If you must travel a load over the heads of other personnel, give

ample warning of your intention before you move.

7. Always “inch” the hoist into the load. Running into the load at full hoist speed imposes

excessive overloads on the hoist and could result in failure of parts and/or supporting

structures. This is particularly true with high hoisting speeds.

8. Limit Switches are for emergency use only and should not be tripped during normal

operation. If it is necessary to travel to the limit, use extreme caution and approach the 

limit in slow speed or by “inching.” Do not leave the hook block in contact with the limit switch at the end of the hoist operation.

9. Be sure the hoist raises and lowers properly when the corresponding push buttons or control

ropes are operated. A reversal of direction indicates a phase reversal in the current conductor,

the reversal of the rope on the drum, or an interchange of wires on a push button – any of

which would cause the limit switch to be inoperative. Do not under any circumstances operate

the equipment until the trouble has bee found and corrected.

10. Center the hoist over the load before lifting. Do not side-pull or end-pull.

11. Know the hand signals for hoisting, cross travel, and crane travel if working with cab

operated hoists or cranes. Operators should accept the signals of only those persons

authorized to give them.

12. Do not leave the load suspended in the air unattended.

13. Do not jog controls unnecessarily. Hoist motors are general high torque, high slip types.

Each start causes an inrush of current greater than the running current and leads to overheating

and heat failure, or burn-out, if continues to excess.

B. Push Button Station

The hoist’s motions are controlled at the push button station. Push Button Stations are 

configured specific to your hoist. There are always hoist UP and DOWN buttons. Other options can include:

1. ON and OFF buttons

2. FORWARD and REVERSE buttons for Trolleys and/or Bridges

3. Emergency STOP Buttons

4. Key-lock Switches.

5. START/STOP for Maintained Push Button Stations Only.

Refer to the Wiring Diagram in this manual to determine the particular configuration for you 


 The buttons

must be pressed in and held down to continue hoist motion.

Refer to the Wiring Diagram in this manual to determine the particular configuration for you 


Maintenance of Hoists

A. Gear Cases, Hoist & Trolley:

The Gear Case is filled with the correct amount of oil at the factory.

1. Lubrication

a. DO NOT use and Extreme Pressure (EP) oil. EP oils will damage the bronze worm wheel

and create and unsafe condition.

b. The oil does need to be replaced after 5000 hours of operation or once per year, whichever

occurs first.

c. Initial Volume: The initial volume of gear case oil, as supplied from our factory, is

indicated in the note section of Section of manual.

B. Lubrication:

Reference Table 2: Lubrication Chart on the next page for appropriate lubricants

1. BALL BEARINGS: These are lubricated for life and require no further maintenance. These

bearings are located at:

a. End(s) of drum shaft

b. Trolley Wheels


a. Bearings pressed in Hook Blocks are pre-lubricated

b. If your Hook block has a grease fitting (i.e. high capacity hoists), pump with general purpose

grease whenever regular maintenance is performed.


a. If your hoist has inner shaft support bearings, (located between gear reducer and cable

drums) or parts with Grease Fittings, pump with general-purpose grease whenever regular

maintenance is performed.