27
D i s m a n t l i n g 0 7 5 3 2 - 0 2 2 0 0 M k I I
M a i n t e n a n c e
I M P O R T A N T
Check the tool against daily and weekly servicing.
Priming is ALWAYS necessary after the tool has been dismantled and prior to operating.
TRIGGER ASSEMBLY
•
To dismantle/service assembly, remove covers from the tool as described earlier.
•
Disconnect all air hoses from assembly, taking care not to damage them. Remove assembly.
•
Using a spanner*, unscrew the Retainer
56
and remove. Take care to keep the Spring
57
.
•
Prise off the ‘O’ Ring
60
taking care not to damage the Spindle
61
and Retainer
56
seatings.
•
Clean and re-assemble using a new ‘O’ Ring
60
.
•
Check length of Spring
57
which must be 12.7mm (0.5”) free length – replace if necessary.
•
Assembly in reverse order of dismantling.
TAIL JAW ON/OFF VALVE
•
The unit is designed so that minimum of servicing is required during the life of the tool.
•
If it is necessary to dismantle valve, proceed as follows:
•
Disconnect air hose from assembly, taking care not to damage them. Remove assembly.
•
Using an Allen Key*, loosen Screw
34
clamping assembly to Barrel
31
and remove assembly.
•
Using a screwdriver*, carefully remove the Chrome Star-lock Washer
33
from Air Tail Jaw Spool
36
and discard washer.
•
Extract Air Tail Jaw Spool
36
from Switch Block
35
.
•
Taking care not to damage the Air Tail Jaw Spool
36
, remove the ‘O’ Rings
38
.
•
Clean spool and refit new ‘O’ Rings
38
using assembly bullet* and insert into Switch Block
35
, noting its orientation.
•
Fit New Chrome Star-lock Washer
33
by clamping in vice using soft Jaws to prevent damage. DO NOT USE UNDUE FORCE.
•
Complete assembly in reverse order of dismantling.
TAIL JAW PRESSURE NON-RETURN VALVE
•
The Non-return Valve
26
is located in the tool handle.
•
To remove/replace the Non-return Valve
26
depress the bulk head fittings and withdraw Blue Plastic Tube
27
from both ends.
•
When replacing the Non-return Valve
26
, note the orientation.
HANDLE & END CAP
•
Clean and inspect mouldings for cracks or other damage.
CURSOR
•
Clean and oil Mechanical Cursor Assembly
11
occasionally with a little light oil.
* Refers to items included in the 0753 Mkll service kit. For complete list see page 23.
Item numbers in
bold
refer to the general assemblies and parts lists on pages 30-31.
Summary of Contents for 0753 MkII
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Page 38: ...38 Notes...
