TM 5-5420-278-10
0010 00
0010 00-6
RAMP BAY CONTROLS AND INDICATORS (Contd)
PUMPS – There are two identical pumps on the IRB-R; each is located on the
inner ponton under an access cover on the roadway deck. Open the access
cover to access the pump. To operate either pump, remove a telescoping
handle (refer to Item 1, WP 0070 00) from one of the IRB-R stowage
compartments and install it on the pump lever. Select the operating mode
desired by referring to the operating instructions on the data plate, also
located on the underside of the access cover, and move the control valve lever
to the desired slot. Refer to WP 0003 00 for data plate.
The four operating modes are as follows:
DOWN: To lower the ramp bay.
TRANSPORT/CROSSING: Ramp bay in transport position. Ramp bay
in crossing position.
UP: To lift the ramp bay.
DOWN FAST: Quick lowering of the ramp bay.
Begin pumping by moving the handle forward and backward. The ramp bay
can be raised with one pump, but it is both easier and faster to use both
simultaneously. There are also two quick-disconnect ports for operating the
cylinders from a remote power source.
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