Braun RA300 Mobility Aid User Manual


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M-2202-0102 Hydraulic Pump:
Fixed displacement external gear
type hydraulic pump with 12 VDC
electric motor and 76 cubic inch
ÁXLGUHVHUYRLUIRU9%)<
and 12V BF3748Y. The Braun
Pump Code for 12 volt M-2202-
0102 pumps is 59.
M-2202-0102 Hydraulic Pump:
Fixed displacement external gear
type hydraulic pump with 24 VDC
electric motor and 76 cubic inch
ÁXLGUHVHUYRLUIRU9%)<
and 24V BF3748Y. The Braun
Pump Code for 24 volt M-2202-
0102 pumps is 60.
Hydraulics
B-3202-0100 Hydraulic Pump:
Fixed displacement external gear
type hydraulic pump with 12 VDC
electric motor and 76 cubic inch
ÁXLGUHVHUYRLUIRU9%)<3
The Braun Pump Code for 12 volt
B-3202-0100 pumps is 67.
All RA300 Hydraulic Pumps:
The Deploy pressure relief valve
is factory set at 1000 psi. The
Stow pressure relief valve is fac-
tory set at 1250 psi.
Hydraulic Fluid: Use Braun
32840-QT (Exxon
®
Univis HVI 26)
K\GUDXOLFÁXLGDo not mix with
'H[WURQ,,,RURWKHUK\GUDXOLFÁX-
ids. Make sure the ramp is fully
deployedZKHQFKHFNLQJÁXLG
OHYHORUDGGLQJÁXLG)LOOWRZLWKLQ
1" of the top of the reservoir. DO
NOT XVHDVROLGSOXJRUÀOOFDS
without a breather hole. Doing so
will result in pump and/or reser-
voir damage.
Contamination: Fluid should be
changed if there is visible con-
tamination. Inspect the hydraulic
V\VWHPF\OLQGHUKRVHVÀWWLQJV
VHDOVHWFIRUOHDNVLIÁXLGOHYHO
is low.
7KHVHDGMXVWPHQWVRQWKHSXPSXQLWOLPLWWKHPD[LPXPRLOSUHVVXUHLQWKH
system to a safe level. It also keeps the amp draw and battery drain at a
minimum when the cylinders reach full stroke.
The Deploy pressure relief valve is preset at 1000 psi. The Stow pressure
relief valve is preset at 1250 psi. Do not WDPSHUZLWKWKLVDGMXVWPHQWXQOHVV
absolutely necessary (will not stow or deploy ramp) and then, only after
contacting The Braun Corporation. Note:7KHÀ[HGQXWRQHDFKDGMXVWPHQW
Allen screw is positioned to limit oil pressure to a maximum (Deploy relief
valve maximum 1450 psi and Stow relief valve maximum 1700 psi). Do not
DWWHPSWWRORRVHQRUUHPRYHWKHRXWHUÀ[HGQXW
Relief Valve Access:7KHUDPSSDQFRYHUVXEÁRRUPXVWEHUHPRYHGWR
access the relief valve (access hole not provided).
Relief Valve Adjustment Procedure
Contact The Braun
Corporation before
adjusting hydraulic
pressure relief valve.
Failure to do so may
result in serious
bodily injury and/or
property damage.
W
A
RNING
Deploy and Stow Pressure Relief Valves
Figure P
1. Insert a 3/16” Allen wrench into the Allen screw.
6HFXUHWKH$OOHQVFUHZDQGORRVHQWKHKH[MDP
QXWLQVLGHQXW%DFNMDPQXWRXWWRRXWHUÀ[HG
nut. Note: Do not attempt to loosen or remove
WKHRXWHUÀ[HGQXW
2. Place load on platform (equal to weight not lift-
ing).
3. Turn the Allen screw clockwise until pump lifts the
load.
4. Secure the Allen head screw and tighten the hex
MDPQXWLQVLGHQXWsecurely.
Deploy Pressure
Relief Valves
Stow Pressure
Relief Valve
Hex Jamb Nut
Allen Screw
SYSTEMS DESCRIPTIONS
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