[Off Road Driving] Rock Climbing
Tyre pressures should be in the range of 18-36 psi depending on the situation.
When attempting rock climbing, place your thumbs on the outside of the steering wheel. If the front wheels suddenly twist you could end up with broken thumbs. Learn to hold the steering wheel this way at all times when you drive so that when you hit the trail, it won’t feel unusual.
Diff lock and axle lockers (if fitted) engaged.
Select low range gears only!
If air conditioning is on, turn it off.
If climbing over sizable rocks, put one front wheel or the other directly on the rock. Don’t pass over rocks by straddling them. Put the wheel squarely on the rock. Avoid too small a bite with the tyre, or the wheel may slip off to the side, tearing the sidewall on a jagged edge. Avoid “side hill” positions, with one side of the vehicle a lot lower than the other.
If the vehicle cannot continue to climb, try turning the steering wheel from side to side; do not change gears, as this will cause loss of momentum. If your vehicle stalls, select a lower gear; engage the hand brake and release it, as the clutch is slowly released.
If the vehicle (manual transmission) has stalled and forward travel looks unlikely, engage the foot brake, and then reverse gear (low range), apply the hand brake; then come off the brakes. Slowly release the hand brake and then turn on the ignition and reverse ‘squarely’ back down. Keep off the brakes and clutch!
Diff lock and axle lockers can be engaged or disengaged at any speed; in any gear, without the use of the clutch, provided you are steering straight ahead and your wheels are not spinning.
On solid rock, be aware that the steering will be hard. If a corner or sharp bend needs to be negotiated, switch off your front lockers (if fitted), and if necessary the rear as well.
HILL STALL RECOVERY
• If the hill becomes too steep, allow the vehicle to stall whilst in gear (manual transmission only). Do not touch the clutch.
• Apply the brake & hand brake. Depress the clutch and select reverse low range.
• Take foot off the clutch, disengage the hand brake, and slowly come off the foot brake.
• Check the track behind is clear.
• Start the engine – keeping all feet off all pedals.
• The starter motor will start to drive the vehicle backwards as the engine begins to fire.
• The Hill Stall Recovery does not apply to automatic vehicles as they should not stall, just lose forward drive when the hill becomes too steep for the gear selected.
• A lesser used method where the terrain is not extremely steep and forward travel is desired, but wheel spin will result if the clutch is let out. This method only applies to manual transmissions and drive trains that have very low forward gears (crawler gears). Leave the vehicle in gear and start the engine without pressing the clutch. The vehicle will begin to move forward while the engine fires. Once the engine fires forward movement can begin. This method is hard on the starter and electrical system and should not be attempted on very steep terrain due to possible overload on the electrical system and starter.
Select low range gears only.
If you cannot see the route exit, walk it first! Remove any badly placed rocks.
• Go over the edge as slow as possible.
• Turn ‘ON’ the air conditioner for extra engine braking.
• Keep off the clutch and use only light braking when needed.
• If the engine stalls, restart it by turning the ignition whilst in gear with the foot off the clutch.
• If your vehicle begins to slide, accelerate slightly.
• If towing a trailer and it begins to slide, accelerate slightly to correct.
• If your vehicle jumps out of gear, stop, before putting it back into gear.
• On steep rocky descents, select neutral, hard on brakes! (winch cable may be needed).
No hand signals, driver playing with his transfer Knob.