Upright SR2770, Service & Parts Manual

Page: 22 / 98

2. Align the STC fitting on the hose assembly
with the STC connector, and push the hose
fitting into the mating STC connector until
you feel a definite snap and a solid stop.
Pull back on the hose assembly to verify that
a proper connection has been made. An
improper connection may result in a sudden
assembly failure with a potential for personal
injury.
❑
Seal replacement instructions
1. Inspect the O-Ring A in Female STC
connectors.
2. Carefully remove the O-Ring
A and Back-Up
Ring B with an O-Ring pick without
damaging the interior surfaces of the fitting.
3. Inspect the interior surfaces and groves of
the fitting and ensure they are free of foreign
material, nicks, scratches, or dents.
Any damaged O-Ring must be replaced with a
new O-Ring and Back-Up Ring using only
genuine Aeroquip parts.
Any damaged fitting must be replaced with a
new part to avoid leakage.
Figure 3. - Female Port Connector
4. If undamaged, clean the fitting and install
Back-Up Ring B at the front of the O-Ring
groove.
5. Install the new O-Ring
A in the groove
behind the Back-Up Ring B and inspect to
ensure O-Ring and Back-Up Ring are secure
in the groove.
Lubricate the O-Ring with a lubricant which is
compatible with the system fluid.
Inspect to verify proper location of O-Ring in
the connector (See Figure 3). Leakage could
occur if installed incorrectly.
6. If the Wire Latch Ring C is damaged,
carefully remove the Latch Ring without
damaging the interior surfaces of the
connector.
7. Carefully insert the new Wire latch Ring in
the Latch Ring groove. The Latch Ring
should be able to rotate in the groove.
8. Inspect and reinstall the connector. Follow
the installation / connection steps for
reinstallation.
page 18 SR3370 & SR2770 (CE) – 12864B
Maintenance Information
IMPORTANT
O-Ring
Back-Up Ring
Wire Latch Ring
IMPORTANT
CAUTION