DIAMOND SPRINGS-EL DORADO FIRE PROTECTION DISTRICT
Standard Company Evolution
Number:  906
Subject:  Over the Bank Mechanical Advantage Pre-rig
Revision Date:  2/4/98
Date:   4/26/93


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Company Size: 2

Personnel: #1 (Officer) ________________________________________

#2 (Apparatus Operator) ____________________________

Company #: _____ Shift: _____ Date: _____

OBJECTIVE Company members will lower a basket stretcher (litter) and single rescuer to a point 75' from an anchor on an apparatus. Company members will then change the lowering system to a mechanical advantage raising system, utilizing a rescue rope system pre-rig. Members will test the system by beginning a haul back maneuver.

Time Limit: 7:30 minutes Completed in: _______________________

Evaluator: ________________________________

Given: An engine equipped with a basket stretcher or Squad 49 shall be used for this evolution. All personnel shall wear full wildland protective clothing.

PROCEDURES

1. Member #2 spots apparatus at least 15' from edge.

Yes _____ No _____ Comments _______________________________

2. Member #1 completes size up and transmits a report on conditions.

Yes _____ No _____ Comments _______________________________

3. Members #1 and #2 offload the rescue litter and place it in position to be lowered.

Yes _____ No _____ Comments _______________________________


4. Member #1 builds a lowering device incorporating a 200' rope, a green web strap, a carabiner, and a friction device anchored to an anchor point on the apparatus. This system is then properly attached to the rescue litter.

Yes _____ No _____ Comments _______________________________

5. Member #2 deploys the pre-rigged Z rig, and anchors to a vehicle or suitable anchor point at least 50' away from the apparatus. The anchor will consist of an appropriate length web strap and a carabiner.

Yes _____ No _____ Comments _______________________________

6. Member #2 dons a rescue seat, locks into the foot end of the rescue litter, and is lowered by member #1 to a distance of 75' from the apparatus. Member #2 then grounds the litter.

Yes _____ No _____ Comments _______________________________

7. Member #1 converts the lowering system to a raising system by first adding a brake (usually a Gibbs ascender) anchored to the same anchor point with a blue web strap. Member #1 then removes the friction device and adds a change of direction pulley.

Yes _____ No _____ Comments _______________________________

8. Member #1 pigs the Z rig into the haul line. The raising system is now complete. Time ends at this point.

Yes _____ No _____ Comments _______________________________

UNTIMED REQUIREMENTS

1. All members test the raising system by beginning a haul back maneuver.

Yes _____ No _____ Comments _______________________________

2. All equipment is secured and placed back in service properly and safely.

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