Maintenance - WERTHER INTERNATIONAL PR10B Anleitung

Remove the cap on the top of the ram, seal the thread of the pressure gauge with Teflon and
·
screw the pressure gauge onto the ram, tightening it with a spanner until it is fully locked (Fig. 2).
Only for PR30 and PR50: Unscrew the winch handle that, for packing convenience, is supplied
n
upturned; then screw it on correctly, locking it with a spanner (Fig. 3).
Lightly grease the winch pins.
·
Spread a thin film of oil on the press workbench support pins.
·
OPERATING INSTRUCTIONS
Position the bed of the press (ref. 1, Fig. 4) at the desired height, lifting it first on one side and in-
·
serting one of the pins (2) into the hole in the press body directly beneath, then repeating this step
for the other side as well.
Only for PR30 and PR50 mod. presses: operate the press winch in order to lift the bed.
n
Position the pins (2) at the desired point.
n
Move the winch slightly to unhook the seal tooth. Lift the tooth with a finger (Fig. 5) bringing it
n
into an upright position and contrary with respect to the winch gear wheel, then let the bed
come down by holding back the winch lever.
Release the tooth that will position itself at the next operation on the winch.
n
I
WARNING
NEVER OPERATE THE WINCH WITH FINGERS CLOSE TO THE GEAR WHEEL.
IT IS ABSOLUTELY FORBIDDEN TO OPERATE WITH THE BED HANGING BY THE ROPES
OF THE WINCH: ALL WORK OPERATIONS ARE TO BE MADE WITH THE BED RESTING
ON THE PINS AND THE WINCH ENTIRELY FREE.
Position the prisms (ref. 3, Fig. 4) on the bed (1).
·
Insert the lever of the pump (4) into its relative seat (5) on the pump.
·
Fig. 6 shows the uses relative to the positions of the two dials on the pump.
·
Operate the lever to lower the ram, carry out the work then bring the ram back to rest with the re-
·
lative dial (Fig. 6).
The pump operating lever is thereby free to be able to be extracted or moved if it gets in the way
of work on the press.

MAINTENANCE

Oil the moving parts of the press every six months and check operation of the pressure gauge.
·
Every six months, grease the winch and its ropes. These ropes will have to be inspected vi-
n
sually and possibly replaced if they are broken or defective.
The hydraulic unit (cylinder/pump) is a sealed system that in normal conditions requires only six-
·
monthly lubrication of the moving parts. In the event of the hydraulic unit leaking oil and being di-
smantled in order to replace the seals, it will be necessary to add oil through the filler hole on the
pump (ref. 6, Fig. 7) until the pump has been filled up to the level of the hole itself. This operation
has to be done with the ram at rest and therefore fully retracted. The oil in the hydraulic units
should anyhow be replaced every two years independently of the general conditions of the unit.
Use hydraulic oil with viscosity from 22° to 25°.
The table shown here gives the quantity of oil needed for each type of press.
A greater amount of oil could cause trouble.
10