DC Electric Full-size RTs
December 2007 Page 17
Section 2 - Operation Component Identification
2.5-6 Brake System
The brake system is located on the main manifold in
the hydraulic/electrical compartment. The brakes must
be manually disengaged before pushing, winching or
towing. Refer to Section 2.12 for procedure on how to
release the brake manually. The system contains the
following controls:
2
1
Figure 2-4. Brake System
1. Brake Hand Pump
2. Brake Auto Reset Valve Plunger
2.5-7 Emergency Lowering System
This emergency lowering system allows platform
lowering in the event of an emergency or an electrical
system failure. Refer to Section 2.13 for the emergency
lowering procedures. The system contains the following
controls:
1
3
2
Figure 2-5. Emergency Lowering System
Holding Valve Manual Override Knob1. - Located
on the holding valve at the bottom of each lift
cylinder.
Emergency Lowering Valve2. - Located outside
the hydraulic/electrical compartment.
Emergency Lowering Access Rod3. - Located at
the right side of the base.
2.5-8 Maintenance Support
The maintenance support is a safety mechanism
designed to support the scissor assembly. When
properly positioned it can support the scissor assembly
and empty platform. The maintenance support must
be used when inspection and/or maintenance is to be
performed within the lifting mechanism. To lower the
maintenance support, push lock lever rearward and the
maintenance support will drop. Refer to Section 2.15 for
procedure on how to use and store the maintenance
support.
Figure 2-6. Maintenance Support
WARNING
The maintenance support must be used
when inspection and/or maintenance or
repairs are to be performed within the
lifting mechanism. Failure to use this
safety mechanism could result in death
or serious injury.
WARNING
Do not reach through the scissor assembly
when the platform is raised without the
maintenance support properly positioned.
Failure to avoid this hazard could result
in death or serious injury.
2.5-9 Manual Storage Box
This weather-resistant box is mounted inside of the
hydraulic/electrical compartment.
It contains operating manual,
ANSI manual of responsibility and
ANSI/CSA certificate. The operating
manual for this make and model of
aerial platform must remain with the
aerial platform and should be stored
in this box.
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