Maintenance And Cleaning - Hazet-Werk MacPherson Instrucciones De Manejo

Operating Instructions
l Remove the MacPherson strut unit.
l Select a pair of tensioning jaws and plastic
spring protection inserts 4 (see table page
19) to fit the spring (see table page 4 – 12),
pin and latch.
Note: Please make certain the locking pins
3 are securely fastened. Drive the tension-
ing jaws 4 apart to match the length of the
spring and to tension as many windings as
possible.
l Fasten the location bar 10 of the HAZET
Spring Vice into a suitable clamping device.
l Place the strut unit between the tensioning
jaws and start tensioning.
Note: For safety reasons assure the precise
position of the spring windings in the ten-
sioning jaws. Otherwise you risk a sliding
out of the spring which cause severe dam-
ages to property and injuries to persons.
l Actuate the drive using an impact screw-
driver or another suitable hand tool. Stop
tensioning process when the upper strut
bearing is released.
Further tensioning is not permitted when
the spring windings are in contact with
each other. Do not continue tensioning
when the upper or lower stroke end of the
piston is reached.
l Releasing the old spring or replacing with a
new spring:
– Release the old spring by turning the
drive to the left.
– Insert the new spring into the Spring Vice
and start tensioning.
Note: For safety reasons assure the pre-
cise position of the spring windings in the
tensioning jaws.
– Place the Spring Vice with the spring
inserted onto the strut unit. Take care
that the position of the spring is correct.
Mount the strut bearing.
– Extend the Spring Vice until it can be
taken off the spring.
l The strut unit can be remounted.
Conical Spring
The use of the Spring Vice on conical springs is
permitted only when the spring center axle and
the compressing device 2 are parallel. For this
purpose, use the tensioning jaws that are suit-
able for conical springs.

Maintenance and Cleaning

l Always keep the Spring Vice clean. Do not
use fat-free agents or water, the use of
which could result in loss of self-lubrification
of device and corrosion could set in.
l For questions and spare part orders please
include the article number of the Spring
Vice.
l The HAZET Spring Vice 4900-2 A is mainte-
nance-free due to its closed system.
l Examination and repair can only be carried
out by the manufacturer.
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