28
INSTALLATION AND MAINTENANCE MANUAL
PUBLICATION DATE 03/02
504 766
Every time you use a grease gun especially for greasing bearings and seals, do it slowly - not faster than 5
strokes in 1 minute. The grease gun can create a high pressure which would cause the seal deformation
and consequent leakage. Never operate the grease gun faster even if the grease contain air gaps.
Overlubrication can cause the same damage as an insufficient lubrication.
Always make sure that your grease gun is in perfect condition.
If you substitute the lubricant by another type make sure that these two kinds are compatible, otherwise
there is a risk of a bearing failure. For example lithium lubricants are compatible with calcareous lubricants
but not with s odium ones.
NEVER MIX PETROLEUM LUBRICANTS WITH SILICONE LUBRICANTS!
LUBRICATION POINTS, QUANTITY AND LUBRICATION PERIODS
ONLY FOR MACHINES 33/40/55 kg 80/100/125 lbs:
LUBRICANT:
Use a multipurpose lithium lubricant containing high-pressure additives of consistency NLGI 2.
SKF - LGEP 2
ESSO - BEACON EP 2
LUBRICATORS:
For main bearings and seals (fig.5.8) there are located on the rear machine cabinet. Press the lubricant in
slowly and let the drum rotate with the same speed as during washing.
QUANTITY OF LUBRICANT:
2 cm
3
(2 strokes) -once in a month or every 200 working hours, which ever comes first.
1. Rubber seal lubricator
2. Front bearing lubricator
3. Rear bearing lubricator
Fig.5.8. Lubrication places of 33/40/55 kg - 80/100/125 lbs machine for bearing house
(placed on rear of machine)
FOR ALL MACHINES 22-55 kg / 50-125 lbs
Once in 6 months or when needed, grease spring suspension eyes (fig.5.12, pos. 6), guiding rods (3), the
door handle casing (fig.5.11.A, pos.2) and the casings in the door brackets (2).
The motor bearings are maintenance-free (do not lubricate).
The hub and pulley seating of machines 22 kg / 50 lbs are maintenance-free.
5.9. DRIVING MECHANISM
On a new machine and after a belt replacement, make an inspection of the belt tightness:
1. After first 24 hrs of operation
2. After first 80 hrs of operation
3. Every 6 months or every 1000 operation hours - which ever come first.
INSPECTION OF THE BELT TIGHTNESS
WARNING !
BEFORE YOU START, TURN OFF THE MAIN SWITCH TO AVOID POSSIBLE INJURIES!
The belts are accessible after the rear or side cover dismantling. If the belts are too tight the bearing
seatings are under stress and their life service has been shortened.
If the belts are too loose they can be slipping on the pulley and cause a noisy operation.
In the case of need, tighten the belts. Change the belts if worn out or damaged.
In table 5.9 is indicated testing force of belt tensioning which can be measured by tension meter. Procedure
for approximate belt tensioning with belt deflection 20mm / 0,8“ : For machine 22/33kg 50/80lbs, apply a load
of 5,5kg / 12,1lbs to the middle of the belt. For machine 40/55kg 100/125lbs apply a load of 7kg / 15,4lbs to the middle
of the belt.
22 kg / 50 lbs, 33 kg / 80 lbs
40 kg / 100 lbs, 55 kg/125 lbs
Force F measured by device
200 N
300 N
Tab. 5.9.
!
