WASTE WATER VACUUM TANK TRAILER
FUEL SUPPLY/RETURN HOSES
Tool Kit, General Mechanic's, Automotive (WP
63B Light Vehicle Mechanic
Engine shut off
Emergency button pushed in
Ignition key removed
To replace the fuel supply and return hose, proceed as follows:
Fuel spills are fire and environmental hazards. Clean up any spills in
accordance with local regulations. Hold up disconnected end of hose and let
fuel drain back into the tank before disconnecting tank end of hoses.
1. When removing fuel supply and return hoses, avoid diesel fuel spills. Always disconnect supply hose
at the fuel filter and return hose at the engine block, first.
2. Cut all cable ties (figure 1, item 1) on 5/16-inch fuel supply hose and -inch fuel return hose.
Figure 1. Removing Cable Ties
3. Using pliers, loosen hose clamp of 5/16-inch fuel supply hose (figure 2, item 1) at the fuel filter (figure
2, item 2). Hold disconnected hose up momentarily to let any fuel drain back into tank.
4. Using pliers, loosen hose clamp of -inch fuel return hose (figure 2, item 3) at the engine block. Hold
disconnected hose up momentarily to let any fuel drain back into tank.