JKO Load Test Director
Gross
Total amount of result
Net
Amount after deduction
Crane configuration includes
Reeving, boom length, counterweight, on outriggers, on rubbers, extensions or jib stowed or mounted, off sets, wire rope type or construction
How does the operator determine the manufacture recommended rope for the crane?
Read the manufacturer load chart or operator manual
Capacities above the bold line on the load chart are based on
Structural length
If replacing the hoist line wire rope on a crane, how do you determine the size or the of wire rope to use?
Use manufacturer's operator manual or load chart
Net capacity is equal to
Gross capacity minus capacity deductions
Conditions that will NOT affect the values illustrated on load cart
Improper outrigger set up, changing radius, and wind
If a jib is erected but not being used, it is treated as a deduction from the cranes
Gross capacity
A truck crane is rated at what percentage of its load capacity
75%
When determining the "gross load" the best method is
Get an accurate load weight and add the rigging
Tipping capacities of crawler cranes are based on what percentage of tipping?
75%
How does the operator determine if correct load chart is being used?
Same manufacturer
In a range diagram, boom length and angle can be used to determine
Load radius
Only approved attachments or extra counterweights made by the manufacturer should be placed on the rear of crane because
The ground pressure will increase
If not listed in the load/capacity charts for a telescopic crane and you are in between boom length, you should
Use the next longer length
The jib capacity is 8 tone and the ball weighs 900 lbs. What is the heaviest load that can be lifted safely?
15, 100
How much is a ton?
2,000 lbs.
When using load/capacity, what does the term "jib angle o ground" refer to?
Main boom plus the length of the jib
When making a left on the main book of an RT, the stowed lattice swing-a-way section
Should be considered part of the gross load that is on the crane load chart
When you change the jib to ground angle from 40 degrees to 30 degrees, you have
Decreased the capacity of the jib
A lattice boom truck crane with a 120 ft. boom will be operating at a 42ft. radius. The load chart shows an entry indicating 25,000 lbs. at a 40ft. radius, followed by an entry listing 20,000 at 45ft. radius. What is the crane's capacity at the 42ft. ?
20,000 lbs.
A truck crane operating with outriggers fully extended and set does not have a fifth front outrigger, the operator should
Refer to the manufacturer's working area diagram
When using a mobile crane on a barge, the crane's load capacity chart shall be
de-rated to 50%
A crane's jib is offset 15 degrees vs. its original 0 degrees offset, but the boo angle remains unchanged. In this situation, the load radius
increases
If the jib is offset, the crane's capacity will
Be reduced
If a bold line is shown on a load chart, the capacities below the line
Are based on the stability of the crane
Rough terrain crane capacities are generally greater over the
Front
On duty cycle operations, most manufacturers require a crane's load chart capacity to be reduced by
20%
Truck crane capacities are usually greater over the
Front
A truck crane is set up on outriggers. The part of the load chart governed by stability is based on what percentage of the crane's capacity
85%
You plan to pick a load you are told weighs 36,500 lbs. Line pull on the crane you are operating is 9,000 lbs. How many parts of the line will you need?
4
If a jib is erected but not being used to lift the load, you should make a deduction from the gross capacities listed in the load chart based on
The actual weight of the jib
On a crawler crane, the part of the load chart governed by stability is based on what percentage of its capacity?
75%
When working on rubber, cranes are rated at what percentage of tipping?
75%
If determining boom tip evaluation is important, the best way to determine this is to
Use range diagram
When operating a crane on a barge, the list chart must be provided by
The manufacturer
The capacities listed in a load chart indicates the _________ that the crane can safely lift
Gross load
In load charts that have capacities divided by a solid black line, the numbers above the line indicate that capacities are limited by?
Structural failure
Within what percentage of level on most telescopic boom cranes have to be for the gross ratings in the load chart to remain valid?
1%
Unless the manufacturer states otherwise, The net capacity of a crane is the capacity listed in the load chart
Minus the weight of the rigging and all the attachments
A cranes rated capacity is based on
Structural and stability
When operating on a crane crawler what is the most unstable all owed quadrant of operation?
Side
Should the load be applied when determining the proper boom angle?
Yes
When working on outriggers, the only time they should be less then fully extended is when
There is a load chart for this operation
What quadrant produces the least amount of ground pressure on a lattice crawler
Side
A work area chart is used for
Identifying capacity change is due to operational quadrants
Should the load be applied when determining the boom angle in relation to the load charts
Yes
If the crane's boom length falls between the lengths listed in the load chart, you should use capacity listed for
The next longest or shortest boom length, which is the lower capacity
Head room is the distance between
Boom tip and load handling services
The effective way of a stowed jib compared with an erected jib is
Less
On some cranes, jib capacity is based on the angle the jib makes with a horizontal(ground). How is this calculated?
Boom angle minus jib offset
NAVMC 11262/2
Crane Daily Inspection
NAVMC 11262/1
Certification of Load Test Record
NAVMC 11262/3
Condition Inspection Report
Crane Daily inspection Checklist
is to ensure the safety and reliability of the assigned equipment; it also provides a record of the results captured during the pre operational checks and inspections.
General Hook inspection
Shall be inspected annually for wear in swivels and pins, other wear Cracks or gouges, and proper operation and condition of safety latches, where installed.
Hook Throat spread
Shall be measured for upon receipt and base measurement should be established by measuring the distance between these tram points (+/- 1/64inch) utilizing a dial caliper and will be entered in the "remarks" section of the 696D
Hook throat spread tolerance
hooks showing an increase in the throat opening by more than 5% from the base measurement shall be discarded.
Hook Block Inspection
"inspected annually". The block bearing plate shall be visually inspected for cracks, wear or other damage. Bearings shall be inspected for unusual wear and free rotation. All components shall be lubricated as required.
wire rope rejection criteria
Kinked, bird-caged, doglegged, or crushed sections.
Wire rope wear
exceeds 1/3 of the original diameter of outside individual wires.
11262.2B
Load Test and ACI order
Certifying Officials
1310,1349,2110,2149,3510,3529 desinated in writing by the unit commander or higher, and have received appropriate MOS testing responsibilities and requirements
Test directors and Inspectors
Assigned in writing by the Certifying Official
Administrative Storage Program
Items of the equipment that dare placed in storage as delineated in paragraph 3002.11 (Deferred Preventive Maintenance Checks and Services) of MCO4790.2, can qualify for a waiver not to exceed 36months
PWR
Prepositioned War Reserve program
Running rope replacement
Six randomly distributed broken wires in one lay or three broken wires in one strand.
High Strand
Where the height exceeds 10% of the nominal diameter
Operations check
Inspect all control mechanisms for maladjustment, Inspect all control mechanism for excessive wear of components and contamination by lubricants or other foreign matter, all safety and locking devices fro malfunction.
Condition Inspection
Inspect for evidence of mishandling and/or damage, Inspect for excessive wear on brake and clutch system linings, pawls, and ratchets. Inspect rope reeling for nonconformance with manufacturers specifications.
Inspections of Forks
Forks will be inspected annually.
Inspection of fork height of tips
Deviation between forks greater than 3% of fork length.
Inspection of forks angle of shank
Bends greater than 3 degrees from 90 degrees.
Inspection of fork strightness
Devotion more than 0.5% of the fork length.
Inspection of forks wear
10% wear of original thickness on any service.
No-Load Test
Truck cranes, extend outriggers and raise the crane carrier off the ground to completely raise tires. Rotate the boom 90degrees from the longitudinal axis of the crane carrier and position boom at a minimum work radius. Raise and lower hook and boom through full working distance of hook travel to exceed limit switch's
Non-destructive Testing
Performed on the hook of tactical load lifting equipment every 5years and at a minimum; the dye penetrant test will be conducted
Load test
Consist of two parts a structural test and a stability test
Load test and aci MCO
MCO 11262.2_
Load testing is only required if...
Any load sustaining components have been altered, replaced, or repaired
Outriggers are...
Considered part of the lifting portion of a crane/ aerial personnel device
Load tests will be the responsibility of the...
Organization performing the repairs and will be completed prior to returning the equipment back to its owner
If documentation of certification is not present, the owning unit/ receiving official may ....
Elect to refuse to accept the equipment or accept it and arrange to have it locally load tested
All acquisition contract pertaining to the purchase and fielding of mobile cranes/ aerial personnel devices must include...
The requirement that manufacturers perform load test certification before delivery
Certifying official is responsible for ensuring the safety and reliability of...
All tactical ground load lifting equipment
The certifying official will be designated in writing by...
Commanding officer
Certifying officials can be...
1310/ 1349
3510, 3529
2110/ 2149 ordinance vehicle maintenance)
Certifying officials shall be qualified at an ....
Appropriate Marine Corp MOS school on testing responsibilities and requirements
Once initial training is received ...
There are no further requirements for formal recertification training
Waivers to the requirements of the order is permitted under the——— condition conditions
3
The three waivers conditions are...
Admin storage program
Prepositioned war reserve program
MARFORRES
Admin storage
Will be stored no less than ...
18 months and no longer than 36 months
Items are not permitted for a waiver for admin deadline
PWR CONDITION
Asset net requirement prior to induction into PWR.
Asset will meet requirement of order prior to issuing to a unit
MARFFORES CONDITON
Allowed one year extension by MARFORRES CG
NAVMC 11262-1
Certification of LOAD TEST
NAVMC 11262-2
Crane daily inspection record
NAVMC 11262-3
Condition inspection record
Following facility conditions required for load testing tactical ground load lifting equipment....
1-Sufficiently large level hard stand
2-Calibrated load cell or it's equivalent with two shackles
3-Calibrated weights heavy and dense (compact) enough to be used in the load tests described
When conducting a condition inspection at a minimum the following test equipment is required...
Electronic or mechanical protractor
Dial calipers
100 foot tape measure ,
2 carpenters levels (2 foot and a 4 foot)
Sheave guage
What will be utilized to document a Condition Inspextion...
NAVMC 11262-3
CONDITON inspection
Prior to dispatch operators of cranes will...
Perform a crane daily inspection of their assigned equipment on a NAVMC 11262-2 and filed with the respective trip ticket
Crane daily inspection will be retained with...
The trip ticket until destroyed
Condition inspections will be conducted ...
Annually
What document records a condition inspection....
NAVMC 11262-3
All deficiencies observed during a condition inspection will be....
Corrected and repairs completed prior to load testing
During extended combat operations where load tests are not feasible ACIs are....
Still required for post Maintenance and annually until such a time that a load test can be accomplished
Hooks shall be inspected....
Annually
In cases where cracks and gouges are transverse to the contour of the hook....
The hook shall be evaluated for retention or disposal
Defects in the unstressed portion of hook...
Do not affect strength
What reduction wear deems a hook needs disposal...
10%
Hooks will not be.....
Painted
Hook throat spread will be measured...
Quarterly
Hooks showing a increase of throat opening more than .... wil be discarded
5% from base measurement
Hook block inspection is inspected
Annually
Wire rope is made of...
Wires
Strands
Core
Crushing is the ...
Leading cause of wire rope retirement
Wire rope rejection when wear exceeds _______the original diameter of outside individual wires
1/3
Wire rope rejection criteria for _____ randomly distributed broken wires in ONE LAY
6
______broken wires in one strand in one lay.
3
For rotation resistant wire rope_____in a length equal to six times the rope diameter or _____ in a length equal to 30 times the rope diameter
2/4
For end connections_____broken wires within one lay length of the end connection.
2 broken wires
Standing guy boom pendants ropes....
3 broken wires in one lay beyond the end connection or 2 broken wires within one lay length of the end connection
Wire rope Loss in diameter of....
10% or more means discard
High strand where height exceeds_____of nominal diameter
10%
Corrosion of wire rope with significant pitting that cannot be removed by abrasive removal of______of the original diameter of individual outside wires
Less than 1/3
Ropes shall not contain
Splices
Replacement of wire rope does not.....
Require load testing
Forks will be inspected
Annually
Height of fork tip deviation will not be greater than
3% of fork length
Angle of shank with bends greater than....
3 degrees from 90 degrees (87-93 is acceptable)
Straightness deviation of more than_____of fork length needs replacement
0.5 percent
Fork wear of ______ original thickness requires replacement
10%
Inspection certification sequence of events....
Conduct ACI
NDT
NO LOAD TEST
STRUCTURAL TEST
STABILITY TEST
What requires load test...
Cranes
Wreckers
Retrievers
Aerial personnel device ( Maint platform)
NDT will be performed on the hook...
Every 5 years
At a minimum _____ test will be performed by mos 2161 or qualified civilian personnel
Dye penetrant test
If a hook fails it will be...
Discarded or replaced
All required test remarks that do not have a specific data entry point in GCSS will be entered manually in the ....
Item instance notes section or attached as supporting maintenance documents
When testing hydraulic boom cranes at no time will a outrigger rise off deck during a....
Structural test
During a stability test a outrigger can rise only ....
Opposite the boom and is not tipping. At no time should two outriggers rise off ground
During combat conditions under supervision of certifying official marine corps equipment with....
An known weight and a dynamometer as testing weight
Structural test requires 110 percent capacity at
10 minutes
Stability test requires....
Chosen test load from stability portion of load chart must be able to do 360 degrees around crane
Load test procedures for aerial personnel device are found in
TM 5-3810-305-10
Load test inspector
Individual who conducts the inspection and certifying that the inspection was completed regardless if the results or the inspection was pass or fail
Test director
Will sign and dated once the equipment has passed the condition inspection. This certifies that the inspection was conducted and passed in accordance with applicable orders and tech manuals
Certifying officials
Will sign once condition inspection record is completed and signed by test director . This certifies that the equipment has completed and passed the yearly inspection requirement in accordance with the applicable orders and TMs
TM 4-48.09
Basic Operations and Equipment
TM 4-48.10
Single Point Rigging Procedures
TM 4-48.11
Dual Point Rigging Procedures
FM 3-21.38
Pathfinder Operations
FM 4-20.102
Rigging Airdrop Platforms
Supported Unit
The unit whose equipment will be moved
-Rigging of load
-Securing slings, straps, clevises and other sling equipment
-Assuring that the loads are properly rigged and do not exceed the Allowable Cargo Load (ACL)
advance coordination with supporting unit NLT?
24 hours
supporting unit
The aviation unit that will fly the load(s)
Receiving unit
Normally an internal element of the supported unit
high density loads
best stability
low density loads
least stability
aerodynamic
becomes stable when streamlined
MEL
maximum external load
ACL
allowable cargo load
ACL based on:
TAPAHAT
type of A/C
age of airframe
pilot experience
altitude ASL
humidity
aviation unit SOP
temperature
UH-1 (Iroquois Cargo Hook RC)
5000 lbs
UH-1 (Cargo Hook Can Accept:)
Nylon, Polyester Round Sling, 11K CHRP
UH-1 (Cargo Hook Cannot Accept)
Metal, 25K CHRP
UH-60A (Cargo Hook RC)
8000 lbs
UH-60M/L (CH RC)
9000lbs
UH-60 (Can Accept)
Nylon, 11K CHRP, 25K Apex W/O spacer, 10K Apex W/ Spacer
UH-60 (Cannot Accept)
Nylon (Donut Ring), 25K CHRP, 25K Apex W/ Spacer, 10K Apex W/O spacer
CH-47 (RC Center Hook)
26000 lbs
CH-47 (Fore/Aft Hook RC)
17000lbs
CH-47 (Fore&Aft Hook RC)
25000lbs
CH-47 (Cannot accept)
Single Point Nylon POA (chinook)
When attaching multiple single point loads to CH-47 going to same location:
heaviest load = center hook
mid-weight = fore hook
lightest load = aft hook
When attaching multiple single point loads to CH-47 going to different locations
first/lightest = fore hook
second/medium = aft hook
third/heaviest = center hook
CH-53 (Super Stallion RC)
32000 lbs (CH: 36000 lbs)
CH-53 (Cannot Accept)
Single Point Nylon POA (super stallion)
Minimum weight CH-53
6000lbs
CH-46 (Sea Knight RC)
10000lbs
CH-46 (Cannot Accept)
Nylon POA to cargo hook (sea knight)
AC6000500 Mod-1 Pendant RC
12000 lbs
AC6000500 Mod-1 Pendant Length
8 Ft
AC6000500 Mod-1 Pendant Weight
53 lbs
What is used on the CH-46 to increase length
AC6000500 Mod 1 Pendant
supported unit, supporting unit, receiving unit
3 units/elements involved in sling load ops
high density, low density, aerodynamic
Three types of loads
T in TAPAHAT
type of airframe
A in TAPAHAT
airframe age
P in TAPAHAT
pilot experience
second A in TAPAHAT
altitude above sea level
H in TAPAHAT
humidity
third A in TAPAHAT
aviation unit SOP
second T in TAPAHAT
temperature
CH-53 max and min lifting capacity
32000lbs and 6000lbs
Reference for flat web slings (ADS)
FM 3-21.38 and TM 4-48.09
Rated Capacity of three large suspension clevises used together
23625lbs
Rated Capacity of silver load binder
5000lbs
Reference for inspection of 25K/10K sling sets
TM 4-48.09 Chapter 6
Volume of 10K Cargo Net
380 cubic feet
four methods to stabilize sling loads
increase weight, increase drag surface area, increase link count, reduce air speed
signalman position
45 degree angle, 20-25m away from A/C
reference for field expedient static discharge wand
TM 4-48.09 Appendix D
Four classifications of sling loads
Certified
Unique
Prohibited
Suitable
when would you use a long line. how would you route it
in brown out/white out conditions in front of A/C
tandem load
two loads, one in front of the other using two cargo hooks
sling load inspectors must be:
E4 and above, and graduate of Air assault, Pathfinder, or SLICC
H&A signal to gain control of A/C
assume guidance