Operator's ManualSeventh Edition • Second PrintingPart No. 226478 S-40 • S-45 39Operating InstructionsDriving on a slopeDetermine the uphill, downhill and side sloperatings for the machine and determine the slopegrade.Maximum slope rating, platformdownhill (gradeability):2WD: 30% (17°)4WD: 40% (22°)Maximum slope rating, platformuphill:2WD: 15% (9°)4WD: 40% (22°)Maximum side slope rating:25% (14°)Note: Slope rating is subject to ground conditionsand adequate traction. The term gradeabilityapplies to the platform downhill configuration only.Be sure the boom is below horizontal and theplatform is between the non-steer wheels.To determine the slope grade:Measure the slope with a digital inclinometer ORuse the following procedure.You will need:carpenter’s levelstraight piece of wood, at least 1 m longtape measureLay the piece of wood on the slope.At the downhill end, lay the level on the top edge ofthe piece of wood and lift the end until the piece ofwood is level.While holding the piece of wood level, measure thedistance from the bottom of the piece of wood tothe ground.Divide the tape measure distance (rise) by thelength of the piece of wood (run) and multiply by100.Example:Piece of wood = 3.6 mRun = 3.6 mRise = 0.3 m0.3 m ÷ 3.6 m = 0.083 x 100 = 8.3 % gradeIf the slope exceeds the maximum uphill, downhillor side slope rating, then the machine must bewinched or transported up or down the slope. SeeTransport and Lifting section.runrise