B5
MAINTENANCE
9803/1250
B5
Issue 1
BREAKER DISMANTLING - HM 22, 25, 29 (cont’d)
13
Remove the cover screw
T
to expose the
charging screw.
14
Loosen the charging screw
U
slowly
approximately 3 or 4 turns, listening for all the
gas to escape. Refit the cover screw
T
.
15
When you are sure that all the gas in the
accumulator has been evacuated, remove the
safety screw
V
from the head.
16
Remove the four top cover retaining screws
P
and remove the cover.
Note
:
There are two long and two shorter retaining
screws
18
Remove the diaphragm
X
from the head.
X
X
17
Remove the trigger pin
W
and the ‘O’ ring seal
Y
from the head.
W
W
Y
Y
P
P
P
P
V
V
U
U
T
T
T
T
