Lti Aerial Operations And Maintenance Manual
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FOREWORD The goal of this manual is to establish standard operating practices as authorized by the Chief of Department and implemented by the Division of Training.
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Lti Aerial Ladders
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Firehouse.com also reserves the right to warn, suspend, and/or ban, any member, at any time, for any reason. Firehouse.com values the active participation we have in our forums. Please ensure your posts are tasteful and tactful. Thank you very much for your cooperation. I am looking for direction on a topic and hope to get feedback on this. My company recently purchased an ALF 100' mid mount tower.
Great truck and we are all learning but one of our own said he read in the manual that you leave the bucket auto level switch in the manual position. It is an LTI ladder and I read the manual 3 times and only found that you leave it in auto. His stance is that if you are on a grade, the bucket will auto level to the turntable and not the road. Now I don't live in San Fran or Pittsburgh so the slope is not that bad. We have found the switch in manual everytime he drives and the bucket is tilted with the rear up about 5 degrees. Please help me before I put him in a storage room and forget he's there. I understand the need for manual at times but we are writing SOG's and I want to be clear and want to put the correct info in them.
2017 suzuki eiger 400 4x4 operators manual pdf. Any help would be great. I am looking for direction on a topic and hope to get feedback on this.
My company recently purchased an ALF 100' mid mount tower. Great truck and we are all learning but one of our own said he read in the manual that you leave the bucket auto level switch in the manual position. It is an LTI ladder and I read the manual 3 times and only found that you leave it in auto. His stance is that if you are on a grade, the bucket will auto level to the turntable and not the road. Now I don't live in San Fran or Pittsburgh so the slope is not that bad.
We have found the switch in manual everytime he drives and the bucket is tilted with the rear up about 5 degrees. Please help me before I put him in a storage room and forget he's there.
I understand the need for manual at times but we are writing SOG's and I want to be clear and want to put the correct info in them. Any help would be great.
Thanks.Tell him to show you where he read to leave it in manual, or STFU. Oldmansink: Like the others who have posted here. 'The auto-level device is to keep the basket level as the raise/lower ladder angle is changed.' Keep it in the automatic position unless there is an issue with the auto-level device. I began my truck experience with a 75 ft. Snorkel, that was mechanically leveled to the truck chassis.
With that device you were condemned to the angle of the truck while operating. Sometimes you would be standing in the basket in an uncomfortable position one way, but as you rotated you would tilt in the opposite direction.
Operation And Maintenance Manual Standards
The truck was stabilized, but not leveled in operation. With today's modern aerial devices, many level the truck chassis if it is within the capability (extension) of the jacks. I would be much more concerned with proper positioning on a slope, and the selection of set-up location. Getting a good solid base to work from with these heavier trucks is absolutely essential.
Study the manual and memorize the maximum fore, aft and side to side slope angles for the device. Then strictly adhere to the Manufacturers manual for set-up. You also need a carefully-thought-out SOP for this equipment.
I could relate some scary tales about an 80,000 lb mid-mount walking across a parking lot in winter conditions. When setting up on a down slope, try to work the down-hill side of the building, so any movement doesn't walk you into the side of the building.
For those of you using an Aerial-CAT, the auto function can be a bear to get properly adjusted so it doesn't feel like you are working on the ocean in an innertube. We have 93' MM ALF/LTI tower and we leave the switch in manual as well.
The exact problem your guy cites is what we found. The reason this became 'critical' in our case, is that we have an 'aftermarket' hosebed of with 300' of attack rated LDH for aerial MS ops, and the rear boxes on the bucket will rest on the box if the auto level is utilized as it tips the nose up a little likely due to the angle of our apron. We bring our bucket down into the cradle, then switch to 'manual' align the rails with the ladder rails and leave it. Upon raising the aerial the switch is activated allowing auto leveling.
The Auto leveling feature is always utilized during aerial ops unless you specifically need to 'tip in' or otherwise align the bucket. We have 93' MM ALF/LTI tower and we leave the switch in manual as well. The exact problem your guy cites is what we found. The reason this became 'critical' in our case, is that we have an 'aftermarket' hosebed of with 300' of attack rated LDH for aerial MS ops, and the rear boxes on the bucket will rest on the box if the auto level is utilized as it tips the nose up a little likely due to the angle of our apron.
We bring our bucket down into the cradle, then switch to 'manual' align the rails with the ladder rails and leave it. Upon raising the aerial the switch is activated allowing auto leveling. The Auto leveling feature is always utilized during aerial ops unless you specifically need to 'tip in' or otherwise align the bucket. If I may stick my nose in here for a minute.
You and the O.P. Are apparently 'Apples and Oranges' since you have the Hose box and he doesn't. And, I can't say much about ALF or LTI since our two Towers were a Sutphen and a Seagrave. I do remember that they were left on 'Auto' unless the Operator needed to do something that specifically required a Manual setting.
RFDACMO2 did say that they change over to 'auto' for operations. I'm fine with that, knowing about his aftermarket hose bed. There isn't any reason for most operations that you need to go to manual mode. Leave it in auto, and do your thing.
As for the OP, read FWD's reply. Also, let the dumbass know that there isn't a sensor or anything else that reads off of the truck its self. The bucket leveling system uses a master/slave combination of helical hydraulic rotary actuators to automatically level the bucket in response to movements of the boom. For a two-stage aerial lift comprised of a lower boom and an upper boom, a first rotary actuator is coupled to the base of the lower boom, a second rotary actuator is coupled to the elbow where the upper boom is hinged to the lower boom, and a third rotary actuator is coupled directly to the platform and upper boom. Movement of the lower boom relative to the base causes the first rotary actuator to displace a fixed amount of hydraulic fluid, and movement of the upper boom relative to the lower boom caused the second rotary actuator to disperse a fixed amount of hydraulic fluid. The displacement of hydraulic fluid in the first and second rotary actuators (the master units) causes an equal amount of displacement in the third rotary actuator (the slave unit), which results in articulating the platform in direct response to movement of the boom in order to maintain the platform in a level position. In this, you will always keep the bucket, or platform level, no matter the angle/slope of the rig during operations.
If I may stick my nose in here for a minute. You and the O.P. Are apparently 'Apples and Oranges' since you have the Hose box and he doesn't. And, I can't say much about ALF or LTI since our two Towers were a Sutphen and a Seagrave.
I do remember that they were left on 'Auto' unless the Operator needed to do something that specifically required a Manual setting.My point was that it is a fact that the bucket will move out of alignment with the rails when bedded on a grade. In the bedded position the rails are down on the cradle and parallel with the body/frame, but the bucket is always trying to seek level in the 'Auto' setting. My point was that it is a fact that the bucket will move out of alignment with the rails when bedded on a grade. In the bedded position the rails are down on the cradle and parallel with the body/frame, but the bucket is always trying to seek level in the 'Auto' setting. Thanks BTW, any Sutphen owners out there?? We had a 1970 Sutphen Tower (wish we still had it) that had a couple of Mercury Switches as part of the Leveling system. Get one of those switches out of balance and no telling where you would end up.
OK, I had to look it up myself to see the LTI directions before saying any more. In our P45M-93/100 Operations and Maintenance Manual the auto leveling appears numerous times. In section 8.4 it's made clear that they intend for the turntable mushroom switch to be positioned in the 'off' position upon stowing the aerial. The confusion maybe that the auto-leveling system employs two mushroom switches, one in the bucket and one at the turntable, both must be in the 'on' position for the auto-leveling to function horizon mode.
The basic hydraulics of the aerial will always maintain the bucket parallel with the turntable. The reasons LTI gives for shutting down the, for lack of a better name, 'horizon auto-leveling system' are:.cold-hot temperature changes could affect the hydraulic fluid allowing droop.the bucket trying to level as soon as 'aerial power' is seen when the apparatus is on a grade. In this case they recommend clearing the bed by 5 ft. Before activating the auto-leveling system. While everyone is quick to point out going with what the manufacturer says, one must look further to see if varying increases safety or decreases it. In this case, if the builder said leave it on, I find it hard to believe there's more danger in shutting it off?
If there was, why have a switch at all? I'm certain 99% of us violate manufactures directions on tons of things everyday and some of those times we're actually in the right! I've yet to see an aerial manufacturer say it's OK to take out windows with their stick, but sometimes that's far safer than the alternatives.
Rotation Limiting System Proper function of the system is as follows: 1. If the truck is short-set, the appropriate Outrigger Not Deployed light will be illuminated in red at the pedestal. To operate any ladder function, the guarded Interlock Override switch must be held continuously while operating ladder controls. In order to allow for cradling of the ladder, there is approximately degrees of rotation travel past the vehicle centerline.
This small angle will not allow the ladder to top or become unstable over the other side. With the ladder in the cradle, the ladder is near the rotational limit. Both rotational directions are allowed but swinging toward the short-set side will be cut-out after approximately degrees of rotation. At that point only rotation away from the short-set side is possible.
For rotational movement, in addition to the Blocking Solenoid, it will be necessary to activate the LEFT or RIGHT Rotation Interlock Override (page 92). Its two buttons are located just forward and to the right of the turntable step. With the blocking solenoid in the OUT or CLOSED position, push either the LEFT or RIGHT Rotation Interlock Button while at the same time moving the main Rotation Control Lever the same LEFT or RIGHT position. Rotating the ladder with the Override Controls bypasses all safety systems and will allow the ladder to move into normally restricted positions. Under no circumstances should the ladder be rotated into the side of the apparatus with a short-set outrigger.
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