Proceq N Mode D'emploi page 39

• Lightly strike the impact plunger (1) with the hammer
mass (14) to release the impact plunger (1) from the
hammer guide bar (7). The retaining spring (15) comes
free.
• Pull the hammer mass (14) off the hammer guide bar
together with the impact spring (16) and sleeve (17).
• Remove the felt ring (18) from the cap (9).
3 .5 .2 Cleaning
• Immerse all parts except for the housing (3) in kero-
sene and clean them using a brush.
• Use a round brush ( copper bristles ) to clean the hole
in the impact plunger (1) and in the hammer mass (14)
thoroughly.
• Let the fluid drip off the parts and then rub them dry
with a clean, dry cloth.
• Use a clean, dry cloth to clean the inside and outside
of the housing (3).
3 .5 .3 Assembly
• Before assembling the hammer guide bar (7), lubricate
it slightly with a low viscosity oil ( one or two drops is
ample; viscosity ISO 22, e.g. Shell Tellus Oil 22 ).
• Insert a new felt ring (18) into the cap (9).
• Apply a small amount of grease to the screw head of
the screw (20).
• Slide the hammer guide bar (7) through the hammer
mass (14).
© 2017 Proceq SA
• Insert the retaining spring (15) into the hole in the
impact plunger (1).
• Slide the hammer guide bar (7) into the hole in the
impact plunger (1) and push it further in until noticeable
resistance is encountered.
Prior to and during installation of the system
in the housing (3), make sure that the ham-
mer (14) does not get held by the pawl (13).
Hint: For this purpose press pawl (13) briefly.
• Install the system vertically downwards in the
housing (3).
• Insert the compression spring (12) and screw the rear
cover (11) into the housing (3).
• Insert the two - part ring (10) into the groove in the
sleeve (17) and screw on the cap (9).
• Carry out a performance check.
Send in the device for repair if the mainte-
nance you perform does not result in correct
function and achievement of the calibration
values specified on the testing anvil.
Maintenance 17