G.R.A.S. SOUND & VIBRATION
Page 7
Hearing-Protector Test Fixture Type 45CA
3
IMPORTANT! Basic Assembly - Safety instructions
Before proceeding to one of the three configuration options in sections 4, 5, or 6, do the basic
assembly of the test fixture according to step 1-4:
1.
Place the test fixture neck onto a solid table, and find the supplied screw and 6 mm Allen key
(Fig. 3.1).
2.
Place the screw into the bottom of the resilient base, and screw the base onto the neck with
the Allen key (Fig. 3.2).
Fig. 3.1
Fig. 3.2
Test fixture
neck
Resilient base
3.
After making sure both of the 1.5 mm Allen grub screws in the head’s steel tube are
loosened to their extreme positions, place the head onto the pedestal and carefully slide the
steel tube onto the top of the pedestal’s neck (Fig. 3.3).
4.
Tighten both of the 1.5 mm Allen grub screws on the steel tube (Fig. 3.4).
IMPORTANT!
Tighten both of
these 1.5-mm
Allen grub screws
Fig. 3.3
Fig. 3.4
Test fixture
head
Pedestal
Steel tube
1.5 mm Allen grub
screws loosened to their
extreme positions
Test
fixture
neck
Screw
6 mm
SK1544
Allen key
6 mm
YY0019
Allen key
1.5 mm
YY0012
ATTENTION!
When assembling head and pedestal, always make sure to tighten both of the 1.5 mm Allen
grub screws in the steel tube as indicated in Fig. 1.1.
Screw
6 mm
SK1544
