Yale Lodeking LT Series, Руководство по эксплуатации и техническому обслуживанию, Страница: 18 / 53

HOIST OPERATION & MAINTENANCE
18
P/N: 11854801 REV. AC
September 2017
6 – LODEKING LT HOIST GEARCASE
LUBRICATION RECOMMENDATIONS
LodeKing LT hoist gearboxes are shipped from the factory prefilled
with a high quality Mobilgear 600 XP 460 mineral oil based lubricant
in the following quantities:
Hoist Capacity Rossi Gearbox Quantity (gallons)
10T/15T/20T MR160 4.8
25T MR180 5
All capacities with Optional
Secondary Holding Brake
MR180 Long Case 6.2
The unit should be filled from the orange breather/filler plug on
top of the case. Ensure that the unit has cooled sufficiently before
removing the fill plug. A sight glass is provided on the side of the
transmission, behind the motor. Ensure that the oil level is halfway
up the provided sight glass. Exact oil quantity required to fill the unit
shall be determined by the sight gage. Do not overfill the unit!
RECOMMENDED OILS:
Columbus McKinnon recommends 460 ISO viscosity grade oil,
either mineral or PAO based synthetic depending on operating
temperature. Acceptable oil types are listed below:
Manufacturer
PAO Synthetic Oil
(ISO VG 460)
Mineral Oil (ISO VG 460)
AGIP Blasia SX Blasia
ARAL Degol PAS Degol BG
BP Enersyn EPX Energol GP XP
Castrol Alphasyn EP Alpha SP
Fuchs Renolin Unisys CLP Renolin CLP
Klüber Klübersynth GEM4 Klüberoil GEM1
Mobil Mobil SHC Gear Mobilgear 600 XP
Shell Omala S4 GX Omala S2 G
Texaco Pinnacle Meropa
Total Carter SH Carter EP
Synthetic oil with a PAO basis and proper viscosity and additive
packages are recommended when it is necessary to increase oil
change interval, decrease operating oil temperature or increase the
ambient temperature range
OIL CHANGE INTERVAL:
Initial Oil Change shall occur at 1000 operating hours, or one year,
whichever occurs first
Operating Oil
Temperature
Oil Change Interval
˚F ˚C Mineral Oil Synthetic PAO Oil
< 149 < 65 4000 12500
149-176 65-80 2000 9000
176-203 80-95 1000 6000
203-230 95-110 Not Recommended 3000
Oil change intervals assume a pollution free environment. It may be
necessary to reduce the oil change intervals based on contaminants
introduced into the gearbox from the operational environment.
REGARDLESS OF OPERATING HOURS:
• Replace the mineral oil every three years after the initial oil change
• Replace or Regenerate the synthetic oil every 5 years
Do not mix different brands of synthetic oil! If a synthetic oil change
involves switching to a different lubricant manufacturer,
ensure that the gearbox is flushed completely before refilling.
Regardless of oil base, Oil sampling and analysis is recommended
on a yearly basis as a preventative maintenance tool. An oil sample
analysis will indicate a trend in wear particles and contaminants (dirt
and water) within the gearcase, as well as give an indication of the
“health” of the oil additive packages. Consult your local oil supplier
for further details.
7 - COMMISSIONING
Carry out an overall check, making particularly sure that the gear
reducer is filled with lubricant.
Where star-delta starting is being used, input voltage must match
the motor lower voltage (connection).
For asynchronous three-phase motor, if the direction of rotation is
not as desired, invert two phases at the terminals.
Before running gear reducers fitted with backstop device, make sure
that the direction of rotation in machine, gear reducer and motor all
correspond correctly.
Attention! One or more startings in the false direction, even
if short, could irremediably damage the backstop device,
the coupling seats and/or the electric motor.
A running-in period is advisable:
– of approx. 400 ÷ 1 600 h for gear reducers with worm gear pairs in
order to reach maximum efficiency;
– of approx. 200 ÷ 400 h for gear reducers with bevel and/or
cylindrical gear pairs in order to reach maximum functionality.
The temperature of both gear reducer and lubricant may well
rise beyond normal values during running-in. After the running-in
period it may be necessary to verify the gear reducer fastening bolt
tightness.
8 - MAINTENANCE
8.1 - GENERAL
At machine rest, verify at regular intervals (more or less frequently
according to environment and use):
a) all external surfaces are clean and air passages to the gear
reducer or gearmotors are free, in order that cooling remains fully
effective;
b) oil level and deterioration degree (check with cold gear reducer
at rest);
c) the correct fastening screws tightening.
During the operation check:
– noise level;
– vibrations;
– seals;
– etc.
Attention! After a running period, gear reducer (excluding
the shaft mounted gear reducers) is subject to a light
internal overpressure which may cause burning liquid
discharge. Therefore, before loosening whichever plug wait until
gear reducer has become cold; if not possible, take the necessary
protection measures against burning due to warm oil contact. ln all
cases, always proceed with great care.
Maximum oil temperatures indicated in lubrication table (see ch.6.2)
do not represent a hindrance to the gear reducer regular running.
Oil change. Execute this operation at machine rest and cold gear
reducer.
Prearrange a proper drain oil collection, unscrew both the drain
plug and the filler plug in order to facilitate oil draining; dispose the
exhaust lubricant in compliance with the laws in force.
Wash the inside part of gear reducer housing using the same oil type
suitable for the running; the oil used for this wash can be applied for
further washings after proper filtering by 25 μm of filtration standard.
Fill in the gear reducer again up to level.
It is always recommended to replace the seal rings (see ch. 9.3)
When dismounting the cap (whenever gear reducers are provided
with), reset the sealing with adhesive on cleaned and degreased
mating surfaces.