CONTROL CONSOLE DESCRIPTIONS 20 RT115 Tier 2 - CONTROLS c00ic044a.eps c00ic045a.eps This indicator lights when parking brake is engaged. Will also light in cold weather. Run tractor at low engine rpm until hyraulic fluid warms. Change filter when indicator lights. Tractor will not move when parking brake is engaged. Hydraulic Filter Restriction Indicator This indicator lights when hydraulic filter is restricted. p Parking Brake Indicator Indicator will turn off after hydraulic fluid warms.