Schaerer 7300 - Outrigger Pressure Relief Valve Removal; Installation

SECTION IV
MAINTENANCE / SERVICE
(13) Screw adjusting screw (5) inward or outward as
necessary (approximately 1/4 turn at a time).
(14) Repeat steps 8 thru 13 until pressure gauge
reading is between 247 to 253 BAR (3581.5 to
3668.5 PSI).
(15) Secure adjusting screw (5) in place with cap (6).
Then repeat steps 8 thru 13 one more time to
ensure reading was not changed.
(16) Lay table onto its left side.
DANGER
There is high oil pressure in Test
Gauge Assembly. Failure to release
pressurized oil, as instructed in following step,
before removing Test Gauge Assembly will result
in release of pressurized oil. This could result in
serious personal injury.
(17) Open shutoff valve of Test Gauge Assembly to
allow oil pressure to dissipate.
(18) Disconnect hose (B) of Test Gauge Assembly
from swivel fitting (4).
(19) Disconnect hose (A) of Test Gauge Assembly
from swivel fitting (2).
(20) Connect hose (3) to swivel fitting (4).
(21) Connect tube (1) to swivel fitting (2).
(22) Install main cover (2, Figure 4-50) on base
weldment (3) and secure with six screws (1).
(23) Raise table to its upright position.
Page 4-50Printed in U.S.A.
4.30 Outrigger Pressure Relief Valve
Removal / Installation
A. Removal
DANGER
Table is very heavy. Use an assistant
to lay table onto its side. Failure to do
so could result in serious personal injury.
(1) Lay table onto its left side.
(2) Remove six screws (1, Figure 4-53) and main
cover (2) from base weldment (3).
(3) Remove cap (1, Figure 4-54) from adjusting
screw (2).
(4) Place a rag under port.
NOTE
Oil will run out of port when adjusting screw is
removed. Plug port with rag or reinstall adjusting
screw temporarily.
(5) Remove adjusting screw (2), spring seat (3),
spring (4), and check valve (5) from mani-
fold (6).
Figure 4-53. Access to Base Components
CA818000
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2
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© Schaerer Mayfield USA, Inc. 2004