Donati DRH 1 Series Instructions For Use Manual Download

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MAN16MG05

instructions

for

use

series

drh

1/2/3/4 -

dst

drt

The maintenance plan includes ordinary types of work, such as inspections, checks and tests conducted by the
operator and/or by qualified staff appointed for normal company maintenance and periodical maintenance, which
includes replacement, adjustments and lubrication, carried out by technical staff trained for the job through specific
courses and publications.

Maintenance operations are divided into:

6.3.1 Daily and periodical maintenance

It includes maintenance work which can be performed directly by the hoist operator or by qualified staff, as
instructed in this publication and/or in attached documentation, which do not require the use of special instruments
or equipment.

6.3

Maintenance plan

• As maintenance work can be carried out at a dangerous height, staff must have

appropriate means of support (scaffolding, platform, ladders etc.) which allows the

work to be performed in safe conditions.

• Staff must also have suitable individual protection devices (D.P.I.).

Quarterly checks to be performed by qualified staff:

• Check the efficiency and wear of the: hook, rope and rope guide
• Check wear of rope drum and pulleys
• Check wear of wheels, sprocket wheels, guide rollers of the trolley
• Verify efficiency and functionality of overload switch
• Visual check inside switchboard for the presence of dust
• Check for oxidised contacts: to be covered, after cleaning, with a very thin layer of

Vaseline

• Check of lubrication of mobile trolley of any festooned cable and cable check
• Check efficiency and integrity of electricity supply line and its components
• Loaded check of motors and brakes and verify level of wear

Daily intervention to be performed by the hoist operator:

• general visual check
• functional checks: motor tests, limit-switch tests, empty test runs, push-button tests of

“stopping” and of the other functions of the push-button panel

• check of the state of the wire rope and hook

Monthly intervention to be performed by qualified staff:

• Visual check of every gear and for possible lubricant leakage
• Function check of the break at full load
• Check that anomalous noise and/or vibration are not present
• See to the lubrication of the gears and limit switches to guarantee normal functioning

and to limit wear

• Check the functionality and integrity of the push-button panel and relative cable

instructions

for

use

series

drh

1/2/3/4 -

dst

drt

MAN16MG05

6.3.2 Frequency and deadlines for maintenance work

The frequency of the following operations is for DRH hoists used in normal working conditions and is valid up to the
M6 group (ISO norm 4301-1:1986) or 3 m (FEM rule 9.511/86).
If the hoist is used normally and correctly for a daily 8 hour shift, overhaul can take place after a period of about 10
years (FEM rule 9.755/93). If used during a number of shifts then the maintenance periods must be reduced
proportionately.

Object of the check

Checks
Inspections - Testing

Structural elements

Welding

Pivots and hinges

rope
Securing elements

Lifting hook

hook block pulleys
Transmission pulleys

rope drum shell
rope grip guide

Lifting reducer
Translation reducer

Lifting motor
Transverse motor

Lifting brake
Transverse brake