Braun RA300 Manuale Utente

Page 26

M-2202-0102 Hydraulic Pump:    
Fixed displacement external gear 
type hydraulic pump with 12 VDC 
electric motor and 76 cubic inch 
ÁXLGUHVHUYRLUIRU9%)<
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 
ÁXLGUHVHUYRLUIRU9%)<
and 24V BF3748Y.  The Braun 
Pump Code for 24 volt M-2202-
0102 pumps is 60.

B-3202-0100 Hydraulic Pump:    
Fixed displacement external gear 
type hydraulic pump with 12 VDC 
electric motor and 76 cubic inch 
ÁXLGUHVHUYRLUIRU9%)<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\GUDXOLFÁXLGDo not mix with 

'H[WURQ,,,RURWKHUK\GUDXOLFÁX-
ids.   Make sure the ramp is fully
deployed

ZKHQFKHFNLQJÁXLG

OHYHORUDGGLQJÁXLG)LOOWRZLWKLQ
1" of the top of the reservoir.  DO
NOT

XVHDVROLGSOXJRUÀOOFDS

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\VWHPF\OLQGHUKRVHVÀWWLQJV
VHDOVHWFIRUOHDNVLIÁXLGOHYHO
is low. 

7KHVHDGMXVWPHQWVRQWKHSXPSXQLWOLPLWWKHPD[LPXPRLOSUHVVXUHLQWKH
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 

WDPSHUZLWKWKLVDGMXVWPHQWXQOHVV

absolutely necessary (will not stow or deploy ramp) and then, only after 
contacting The Braun Corporation.  Note:

7KHÀ[HGQXWRQHDFKDGMXVWPHQW

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
DWWHPSWWRORRVHQRUUHPRYHWKHRXWHUÀ[HGQXW

7KHUDPSSDQFRYHUVXEÁRRUPXVWEHUHPRYHGWR

access the relief valve (access hole not provided).

1. Insert a 3/16” Allen wrench into the Allen screw.  

6HFXUHWKH$OOHQVFUHZDQGORRVHQWKHKH[MDP
QXWLQVLGHQXW%DFNMDPQXWRXWWRRXWHUÀ[HG
nut. Note: Do not attempt to loosen or remove 
WKHRXWHUÀ[HGQXW

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 

MDPQXWLQVLGHQXWsecurely.

Deploy Pressure 

Relief Valves

Stow  Pressure 

Relief Valve

Hex Jamb Nut

Allen Screw