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Maintenance
© 2017 Proceq SA
• Turn knurled screw (33) to rewind the recording paper
from reel (31) to reel (32).
• Pull out the knurled screw (33) until it locks and then
remove the reel (32).
• Insert a new roll with the text "Value 100" on the side
closest to the knurled screw (33).
• If the knurled screw (33) does not engage, turn the reel
(32) until the knurled screw (33) starts turning with it as
well.
• Cut off the start of the paper strip like an arrow and
insert it into the slot in reel (31).
• Tension the paper by turning the reel (31).
3 .4 Storage
Prior to the storage of the hammer in the original case
release the impact as during a measurement and fix the
plunger (1) with the push-button (6). Secure the push-
button additionally with a strong adhesive tape.
3 .5 Maintenance Procedure
We recommend that the concrete test hammer should
be checked for wear after 2 years at most and be
cleaned. Do this as described below.
The concrete test hammer can either be sent
to a service center authorized by the vendor or
else it can be maintained by the operator
according to the following description.
The items (in brackets) are illustrated in Fig. 3.3,
"Lengthways section through the concrete test hammer"
on page 18.
3 .5 .1 Stripping Down
Warning!
Never strip down, adjust or clean the pointer
and pointer rod (4) (see Fig. 3.3, page 18),
otherwise the pointer friction may change.
Special tools would be required to readjust it.
• Position the concrete test hammer perpendicular to the
surface.
Danger!
The impact plunger (1) generates a recoil
when it deploys. Therefore always hold the
concrete test hammer with both hands!
Always direct the impact plunger (1)
against a hard surface!
• Deploy the impact plunger (1) by pushing the concrete
test hammer towards the surface until the pushbutton
(6) springs out.
• Unscrew the cap (9) and remove the two-part ring (10).
• Unscrew the cover (11) and remove the compression
spring (12).
• Press the pawl (13) and pull the system vertically up
and out of the housing (3).
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