OM4016 08/07 Maintenance - Section 4 Lubrication and Service Page 4-15 HYDRAULIC TANK SERVICE 5. If hydraulic components have been removed and lines drained, start the engine and raise the dump body 2-3 times to circulate oil and fill all voids. Filling Instructions (Hoist Oil Supply) 1. Park the truck on a level surface, lower the dump body, and shut down the engine. Before raising body, be certain that the truck is in an area where there is sufficient overhead clear- ance to allow the body to be raised. When removing tank cap, turn cap slowly at first to relieve inner pressure. Remove cap only after pressure has been completely relieved.
Any operating fluid, such as hydraulic oil or brake fluid escaping under pressure, can have suffi- cient force to enter a person's body by penetrat- ing the skin. Serious injury and possibly death may result if proper medical treatment by a phy- sician familiar with this injury is not received immediately. 6. Lower the dump body and shut down the engine and repeat steps 2. through 4. if neces- sary. Filling Instructions (Rear Brake Cooling Oil Sup- ply) 2. Turn the oil filler cap (3, Figure 4-3) slowly counterclockwise to release internal tank pres- sure. 1. Park the truck on a level surface, lower the dump body, and shut down the engine.
When removing tank cap, turn cap slowly to relieve inner pressure. Remove cap only after pressure has been completely relieved. Any fluid escaping under pressure, can have sufficient force to enter a person's body by penetrating the skin. Serious injury and possibly death may result if proper medical treatment by a physician familiar with this injury is not received immedi- ately. 2. Turn the oil filler cap (8, Figure 4-3) slowly counterclockwise to release internal tank pres- sure. 3. Fill tank with recommended oil until oil is visible in the sight glass (7). To reduce rear brake "squeal", use ONLY SHELL DONAX - TD Oil or BP TRACTRAN UTH. If these oils are not avail- able, use Lube key "C".
FIGURE 4-3. HYDRAULIC TANK 1. Filter Covers 2. Bolts 3. Hydraulic Oil Filler Cap 4. Hydraulic Oil Level Sight Glass 5. Hydraulic Oil Drain 6. Brake Oil Drain 7. Brake Cooling Oil Sight Glass 8. Brake Cooling Oil Filler Cap 9. Breather Rear Brake Oil tank refill capacity: . . . . . . . . . . . . . . . . . . . . . . . . 268 Liters (70.8 gal.) 4. Remove and clean Strainer (1, Figure 4- 3A) from inlet to Oil Cooler (inside R.H. frame rail). Be sure to clean this strainer at every oil change and after any rear brake fail- ure. 3. Fill tank with recommended oil until oil is visible in the sight glass (4). Refer to "Lubrication Chart" for type of oil to use. Lube key "C".
Hydraulic tank refill capacity: . . . . . . . . . . . . . . . . . . . . . . . . . 162 Liters (42.8 gal.) FIGURE 4-3A 4. Replace fill cap.