BGU FSW 4.5 M, Original Instruction Manual

Page: 13 / 24

Seite 13
6.6.4 Stretching of the drive chains
After the first operation hours you possibly experience
some extent of release of the drive chain that will then
need to be restretched.
Stretching is accomplished by first removing the safety
guard on it (Pos.1 - Fig. 9). Then slightly realease the
fixation screws on the mount (Pos. 2 - Fig. 9) and finally
access the chain and start stretching it by means of the
special adjustment screw (Pos. 4).
Adjust the chain so that you can still provoke some
extent of deflection by applying one finger tip pressure
in the middle. Then make the PTO shaft turn and check
for troublefree and effortless turning.
Properly stretched chains can still be deflected by 1-3
mm by applying your maximum hand force in the middle
of the distance between sheaves.
(Fig. 9)
5.7 Lubrication
Make sure that the motor is switched off and all moving parts are secured before performing any
maintenance/repair work on the machine.
The winch is equipped with self-lubricating bearings that required no further lubrication or maintenance.
Maintenance is mainly required on the engagement/locking mechanism (Pos. 13 - Fig. 7) that needs peri-
odical checkup. Clean all metal surfaces with spray agents in order to:
• increase lubricant efficacy and
• inhibit formation of humidity, condense water and ice on the leverage and the control rods and
therefore prevent consequent functional troubles.
Lubricate the housing of the upper block every 50 hours.
Provide regular maintenance of the drive chain removing any eventual residual dirt and slightly greasing
it. Use grease suitable for high temperature (it should not melt as common low-price grease) in order to
prevent grease contamination of the sliding clutch surfaces.
Strictly use special spray lubricant for link chains.
Provide PTO shaft lubrication in accordance with the instructions of the manufacturer (Fig. 10).
CAUTION: improper lubrication may cause dangerous contamination of the clutch sliding parts and of the
brake lining.
(Fig. 10)