TMS800E OPERATOR’S MANUAL 3.
4.
OPERATING CONTROLS AND PROCEDURES
To engage deep low reverse, put the range control switch in the down (low) position. Move the deep reduction switch to the forward (IN) position. Carefully release the clutch, making sure deep reverse is fully engaged.
When adverse conditions have passed, do the following: 1.
Stop the crane and position the switch to the unlock position.
2.
Resume driving at a safe speed.
Driving Tips
Service/Parking Brakes
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For a smooth start, always select an initial starting gear that will provide sufficient reduction for the load and terrain.
For the most effective braking and maximum life from the brake system components, the following suggestions are made.
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On later model cranes, progressively shift the road control ratios.
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Always use normal double clutching procedures when making lever shifts.
Air brakes have light pedal operation and the driver is cautioned to use extreme care in application until a good feel is achieved.
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Use the engine as a brake when approaching a stop or going down a long grade. On a downgrade, use the same transmission gear as would be needed to go up the same grade.
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When necessary to use brakes to reduce crane speed on downgrades, use an on-and-off application to minimize heat and wear. Do not hold a continuous brake application or slide the wheels.
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When driving on slippery pavement or under icy conditions, alternately and smoothly apply and release the brakes to prevent skidding.
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Keep the tires properly inflated. Improperly inflated tires can reduce the efficiency of the brakes.
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After driving through water, dry the brakes by applying them lightly while maintaining a slow forward speed with an assured clear distance ahead until brake performance returns to normal.
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Never slam or jerk the shift lever to complete gear engagement.
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Never coast with the gear shift lever in the neutral position.
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Never move the deep reduction switch or the range control switch with the gear shift lever in the neutral position while the vehicle is moving.
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Never make a range shift while operating in reverse.
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Never downshift at too high of a road speed.
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When slowing down, the proficient operator can downshift through all the individual gear speeds to prolong the life of the brakes.
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In most cases, depending on the engine and axle ratios, fuel can be saved by operating the crane at less than governed rpm while in 8th gear.
3
Rear Tandem Inter-Axle/Cross-Axle Locks DANGER Stop immediately if low air pressure warning sounds and determine cause of air loss, Stop by downshifting and use engine as a brake. Make final stop using a single brake pedal movement to avoid excessive loss of air and sudden engagement of parking brakes.
CAUTION Do not operate differential locks on dry roads. To engage the inter-axle or cross axle differential locks for maximum pulling power when approaching slippery or poor road conditions, do the following:
CAUTION Do not engage or disengage differential locks while wheels are spinning or at speeds over approximately 16 km/h (10 mph). 1.
Stop the crane and position the switch to the lock position.
2.
Proceed over the poor road conditions cautiously.
GROVE
NOTE:
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If the pressure drops below 14 kPa (2 psi) per minute with the engine stopped, have the air system checked for leaks.
Regularly check the air pressure gauge. System air pressure should never drop below 310 kPa (45 psi). If both systems drop below 310 kPa (45 psi), the automatic spring brakes will actuate. Normal operating pressure is 725 to 825 kPa (105 to 120 psi).
Published 09-14-2012, Control # 132-07
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