Stihl RZ 900 Series Instruction Manual - Page 11

Slope Operation WARNING Operation on slopes can be dangerous. Using the unit on a slope that is too steep where you do not have adequate wheel traction (and control) can cause sliding, loss of steering, control, and possible roll over. Do not operate the unit under any condition where traction, steering, or stability is in question. Tires could slide even if the wheels are stopped. Do not operate on a slope greater than 15 degrees (a 5.4 foot rise over a 20 foot length). Avoid turning down slopes; if possible turn up slopes. Avoid sudden turns or rapid speed changes. Reduce speed and use extreme caution on ALL slopes. The surface condition you are on can greatly impact your ability to safely operate this unit. Operating on wet or slippery slopes can cause sliding and loss of steering and control. Do not operate on slopes that are slippery, wet, or have soft soil conditions. If you feel uncomfortable about operating the unit on a slope, don't do it. WARNING Slopes are a major factor related to loss-of-control and tipover accidents, which can result in severe injury or death. All slopes require extra caution. If you cannot back up the slope or if you feel uneasy on it, do not drive on it. Do not use this unit on slopes greater than 15 degrees. Select slow ground speed before driving onto slope. Use extra caution when operating on slopes with rear-mounted grass catchers. Avoid turning down slopes; if possible turn up slopes. Use caution when changing direction and do not start or stop on a slope. Do: • Remove obstacles such as rocks, tree limbs, etc. • Evaluate the terrain to determine what accessories and attachments are needed to properly and safely perform the job. Use only accessories and attachments approved by the manufacturer. • Avoid holes, ruts, bumps, rocks, or other hidden hazards. Uneven terrain could overturn the unit, or cause the operator to lose their balance or footing. Tall grass can hide obstacles. • Slow down and use extra care on slopes. Be sure to travel in the recommended direction on slopes. Turf conditions can affect the unit's stability. Use caution when operating near drop-offs. • Slow down and use caution when making turns and when changing directions on slopes. • Use slow speed. Choose a slow speed so that you will not have to stop or change speed while on the slope. • Keep all movement on the slopes slow and gradual. Do not make sudden changes in speed or direction. • Use care with grass catchers or other attachments. These can change the stability of the unit. See your attachment or accessory manual or contact your authorized STIHL dealer for information on proper wheel weights or counterweights. Do NOT: • Avoid starting, stopping, or turning on a slope. Do NOT make sudden changes in speed or direction, which could cause the mower to roll over. • Do not mow down slopes towards or near drop-offs, ditches, or embankments. The mower could suddenly turn over if a wheel is over the edge of a cliff or ditch, or if an edge caves in. Give yourself a minimum of two mower widths of clearance around these hazards. • Do not mow on wet grass. Reduced footing or traction could cause sliding. • Do not try to stabilize the unit by putting your foot on the ground. • Do not mow excessively steep slopes. • Do not use grass catcher on steep slopes. • Do not mow slopes if you cannot back up them. Roll Over Protection System (ROPS) Instructions Your model is equipped with a with a Roll Over Protection System (ROPS) that consists of a folding roll bar and a seat belt. 11