Service And Maintenance; Maintenance Overview; Service Overview; Brake System - Tractel tralift TS Manual De Empleo Y Mantenimiento

General:
Service and maintenance are preventive measures designed to preserve the full functionality of electric chain hoists. Non-compliance with service
and maintenance routines can result in reduction in the useful function of and/ or damage to electric
chain hoists.
Service and maintenance work should be carried out at the predefined time intervals,
in accordance with the instruction manual (table 3-1 and 3-2).
During service and maintenance work, general accident prevention directions, special safety directions (chapter 0.3) as well as hazard protection
instructions (chapter 0.4) should be followed.
DANGER !
Service and maintenance work should only be performed on unloaded electric chain hoists. The main switch must be off. The lower
sheave or hook fittings must be lying on the floor or a maintenance platform.
Maintenance work encompasses visual checks and cleaning routines. Service work includes additional functional checks. During the functional
checks, all securing elements and cable clamps must be checked for secure seating.
Cables must be inspected for dirt, discoloration and arc spots.
CAUTION !
Used operating materials (oil, lubricants, etc.) should be safely collected and disposed of in an environmentally friendly manner.
Service and maintenance intervals are defined as follows:
t ............ : daily
3 M ....... : quarterly
12 M ..... : annually
The predefined service and maintenance intervals should be reduced when the loading of the electric chain hoist is exceptionally large and when
frequently operated in adverse conditions (dust, heat, humidity, steam, etc.).

3.2 Service and maintenance

3.2.1 Maintenance overview

See table 3-1.
Table 3-1 Maintenance overview
Term
1. Load chain
2. Hoist and carriage
3. Power supply cable
4. Limit switch
5. Seal
6. Cable discharging device control cable

3.2.2 Service overview

See table 3-2.
Table 3-2 Service overview
Term
1. Load chain

2. Brake system

3. Electrical fittings
4. Securing screws on suspended parts
and load hook with accessories
5. Gearing
6. Limit switch
7. Slip clutch
3.2.3 Brake system
The spring-loaded brake is a solenoid operated single disk brake with two friction surfaces. The braking force is applied by compression springs.
The braking torque is generated when no current is applied. The ventilation is electromagnetic. The brake operates with DC current.
The brake must be able to hold the nominal load in power free mode without any problems.
CAUTION !
The brake coil voltage must be the same as the operating voltage.
NOTE
16
t 3 M 12 M
X
X
X
X
X
X
t 3 M 12 M
X
X
X X
X
X
X
X
X
Activity
visual check
clean and lubricate as needed
abnormal noise check
seal check
visual check
function check
visual check
visual check
Activity
lubricate
measure wear
function check with load
function check
check for cracks
check screw movement
visual check wear
check switching elements
function check
Notes
see chapter 2.2.2
see chapter 2.2.3
Notes
see chapter 2.2.2 / 3.2.4
see chapter 3.2.3
see chapter 3.2.8
see chapter 3.2.6
see chapter 2.2.3
see chapter 3.2.7