Repair information and repair instructions 21
6.2.7 Replacing the tubes
Tools required:
• Crosstip screwdriver, size 1,
• Bulldog end cutting nippers,
• Open-ended spanner SW 7,
• Small slotted screwdriver or flat object for bending the single-lug clips.
1. Unscrew the base section of the housing (see
steps 11. to 13. in chapter ”6.2.3 Dismantling
the housing“ on page 14).
2. Disconnect the supply tube 25 from the pneu-
matic block by pushing back the sleeve of the
angular bush 40 and pulling out the tube.
3. Using an open-ended spanner (SW 7), un-
screw the swivel screw connection 42 from the
pressure gauge 6.
4. Open both single-lug clips 26 on the pressure
gauge tube 23:
– First, open the clips with the bulldog end cut-
ting nippers.
– Then carefully bend them open using a
small screwdriver.
5. Pull the tube from the connection on both sides.
6. Replace the pressure gauge tube 23 (150 mm
long):
– Slide a new single-lug clip 26 onto the new
pressure gauge tube 23.
– Slide the tube onto the bush 43 on the pneu-
matic block.
– Align the clip and squeeze it together using
the bulldog end cutting nippers.
– In the same way, connect the tube to the
swivel screw connection 42.
7. Push the new supply tube 25 into the angular
bush 40 on the pneumatic block as far as it will
go.
Take care to ensure the correct installation posi-
tion:
The angular bush should be pointing towards the
centre of the device.
The tube runs beneath the pressure gauge tube.
8. Screw the swivel screw connection 42 securely
to the pressure gauge 6.
Take care to ensure the correct installation posi-
tion: The tube must not protrude beyond the
housing.
9. Join the two halves of the housing together
(see “6.2.4 Assembling the housing” on
page 16).
10. Perform a final check (see “3. Final Check” on
page 7).
40
25
42
6
42
6
26
23
43
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