MAINTENANCE N. Releasing Hydraulic System and Tank Pres- sure. WARNING NEVER CHANGE OILS OR FILTERS ON A MACHINE THAT HAS JUST FINISHED WORKING. ALLOW MA- CHINE TO COOL FIRST UNTIL OILS AND FLUIDS ARE WARM, NOT HOT. RELEASE HYDRAULIC TANK PRESSURE BEFORE WORKING WITH ANY HYDRAULIC COMPONENT. HYDRAULIC OIL CHECK POSITION FIGURE 4.6A 1. Move the machine to firm level ground and place the attachments on the ground in the oil check position as shown in Figure 4.6A. RELEASE HYDRAULIC TANK PRESSURE 2. Stop the engine. 4 3. Make sure to place the ignition key in “ON” postion and the safety lever is in the unlocked (down) position. 4.
Shift the right and left travel control levers shift forward and backward, operate the right and left control levers in full stroke several times. FIGURE 4.6B 5. Remove cap and depress hydraulic relief valve located on the upper surface of hydraulic tank to release the pressure in the hydraulic tank. See Figure 4.6B. NOTE THE HYDRAULIC RELIEF VALVE ON SOME EARLIER SK210(LC)/SK250(LC)-VI DYNAMIC ACERA MA- CHINES DO NOT HAVE A HARD CAP; INSTEAD THESE VALVES HAVE A RUBBER CAP. ON THESE VALVES, DEPRESS THE RUBBER CAP TO RELEASE HYDRAULIC TANK PRESSURE. 6. Carry out the inspection and/or maintenance of hydraulic system.
WARNING WHEN REPLACING ANY HOSE OR SEALS, MAKE SURE THE ATTACHMENTS ARE WELL SECURED TO AVOID SUDDEN MOVEMENT OF ATTACHMENT. SLOWLY REMOVE BOLTS TO RELEASE ANY HY- DRAULIC PRESSURE DURING DISASSEMBLY. 4-6 SK210(LC)/SK250(LC)–VI Dynamic Acera OM, 09/00 Rev.2