Sakai SW800-II, Руководство по ремонту

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9-012
INSPECTION AND ADJUSTMENT
6-2-2. Adjustment of the port relief valves
①
Check the locknut (13) of the port relief valves (9), (10), (11)
or (12) for evidence of having loosened.
Port relief valve (9) : Front drum high-amplitude side
Port relief valve (10) : Front drum low-amplitude side
Port relief valve (11) : Rear drum low-amplitude side
Port relief valve (12) : Rear drum high-amplitude side
②
If there is evidence of the locknut having loosened, adjust
the port relief valve so that the pressure becomes within
the standard pressure range while watching the pressure
gauge.
To adjust the pressure, loosen the locknut (13) and turn
the adjustment screw (14).
Adjustment screw turned clockwise
: Pressure rise
Adjustment screw turned counterclockwise
: Pressure drop
Pressure change rate : 12.9 MPa/turn
(1,870 psi/turn)
③
If there is no evidence of the locknut having loosened,
remove the port relief valve (9), (10), (11) or (12).
④
Check the removed port relief valve for trapped dirt and
scratches on its seat.
⑤
If trapped dirt is present, disassemble and clean the port
relief valve.
⑥
If a scratch is found on the seat, replace the port relief
valve.
⑦
After adjustment, measure the pressure again and check
that the pressure reaches the standard pressure range.
(13) Locknut : 19.6 to 29.4 N·m ( 14 to 22 lbf·ft )
(9)(10)(11) and (12) Port relief valve : 60 to 80 N·m ( 44 to 59 lbf·ft )
(NOTICE)
Carefully disassemble and reassemble after taking
steps to prevent foreign material from getting in.
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10
Right side of machine
Left side of machine
9
12
11
SW800- -09005
13
14
SW800- -09010