Predictika · Construction equipment

An AI sales agent's backhoe loader order, checked before it goes out

An AI sales agent prepares an order for JCB 3CX and 4CX centermount backhoe loaders: which model (3CX, 3CX PLUS 14 or 15, 3CX PRO 14, 4CX PRO 14 or 15), which dipper, bucket, cab and thumb, how many machines, what the job needs (dig depth, loader lift, transport height, operating weight, travel speed, engine power, all-wheel steer), and the dig depth and operating weight it states. Before it goes out, the agent sends it to Predictika, which checks it against a declarative model of the figures in JCB's public specification brochure and returns a verdict, every reason and the figures it computed.

Scope: 3CX and 4CX centermount backhoe loaders: six models, three dipper choices, two buckets, cab and thumb, checked against the job's dig depth, lift, height, weight, speed, power and steering. See everything this validator covers

This validator models an order for one centermount JCB backhoe loader configuration, based on the specification tables in JCB North America's public 3CX and 4CX brochure, not just the scenarios shown below.

  • Models and dippers — six models (3CX, 3CX PLUS 14, 3CX PRO 14, 3CX PLUS 15, 4CX PRO 14, 4CX PRO 15) with a fixed, inner box or outer box extending dipper. The validator takes the brochure's SAE maximum dig depth with the dipper extended, and the transport height for the chosen dipper, and blocks a job that needs more depth or less height than the model gives.
  • Lift, speed and power — boom lift capacity at full height for the general purpose or 6-in-1 shovel, the top gear speed rounded down to a whole mile an hour, and gross horsepower (74 on the 3CX, 109 on the others). All-wheel steer and crab steering are listed only for the 4CX PRO models.
  • Operating weight — the brochure's operating weight with canopy, fixed dipper and 6-in-1 shovel, plus the published additions for the cab, the extending dipper and the thumb. Where the brochure gives no figure, for example the fixed dipper with a thumb, the extending dippers on the 15 series without a thumb, or the general purpose shovel, the weight limit goes to a JCB dealer and is not guessed.
  • Stated figures and approvals — the dig depth and operating weight the quote states must equal the computed ones. The brochure gives no dig depth for a fixed dipper on the 3CX PLUS 15 and 4CX PRO 15, so that choice goes to a dealer for confirmation.

Any backhoe order that touches these rules is in scope — not only the scenarios pictured here. Not covered: prices (the brochure carries none, so this page shows no price build-up), sideshift models, attachments and options other than the cab and thumb, other JCB machines, and real job performance, which depends on conditions. The brochure read is the en-US edition dated 01/25 as hosted by a JCB dealer.

The AI sales agentBuilds the order from the conversation and says it is ready.
Predictika validatorChecks every rule at once and returns the verdict, each finding, and the computed figures.

6 scenarios in 3 groups · each group runs from the agent’s first attempt to the outcome · click one to switch

What the agent proposes

The AI sales agent says

Illustrative agent statement. The validator receives the structured request below.

Proposing agent: AI sales agent (scripted)

Before sending, the agent must call Recorded run

Predictika validator


      

        
        
        
      

      
Waiting for the call.

      
    

  

  
  

    
Where rules-based CPQ gets it wrong
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Our assessment of what a typical rules-based CPQ (product rules, price rules and validation rules, as in Salesforce CPQ) does with the same cases. It is a judgment about effort and reliability, not a claim that nothing can be built.

    
What the validator caughtTypical rules-based CPQPredictika
Only the dig depth, height and lift the brochure gives for each model and dipperOnly with workarounds
Each model has its own dig depth and transport height for each dipper, and the lift depends on the bucket. A rules-based CPQ holds that as a table or one rule per combination, edited by hand when the brochure changes.		Model, dipper and bucket arrive in one request and are matched to the published figures on every call.
Operating weight built from the base weight and the published additionsOnly with care
The weight is a base figure plus a cab, a dipper and a thumb addition, and some additions are not published for some models.		The weight is computed on every call, and a combination the brochure does not give goes to a dealer instead of a guess.
Choices that are not published for a model (a fixed dipper on the 15 series, steering options)Only with workarounds
A rule has to say what is not published, which means one rule per gap and a review whenever the brochure adds a figure.		Unpublished figures go to a person with the reason, without blocking a configuration that may still be orderable.
Dig depth and weight the quote statesOnly with care
A stated figure is derived from the model and the options, so a rule has to recompute it and compare.		The stated figures are fields in the request, compared with the computed ones on every call.
Every problem returned in one answerOnly with workarounds
Rules tend to fire as the quote is saved or a step is completed, so a person often fixes one error and meets the next.		All findings come back together, whatever order the choices arrived in.

  

  

    
What this validator catches: findings from its test cases
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Every rule is checked on every call, in any order the choices arrive; one problem never hides another. Blocking findings stop the quote; approval findings need a person to sign off; everything else is computed.

    
1The job needs 100 gross horsepower; this model has 74.
2The job needs a loader lift capacity of 7671 lb at full height; this model with this bucket gives 7670 lb.
3The job needs a loader lift capacity of 7120 lb at full height; this model with this bucket gives 7119 lb.
4The job needs a loader lift capacity of 8650 lb at full height; this model with this bucket gives 8649 lb.
5The job needs a dig depth of 176 inches; this model with this dipper reaches 175 inches (SAE maximum dig depth, dipper extended where it extends).
6The job needs a dig depth of 223 inches; this model with this dipper reaches 222 inches (SAE maximum dig depth, dipper extended where it extends).
7The job needs a dig depth of 217 inches; this model with this dipper reaches 216 inches (SAE maximum dig depth, dipper extended where it extends).
8The job needs a dig depth of 241 inches; this model with this dipper reaches 240 inches (SAE maximum dig depth, dipper extended where it extends).
9The specification gives no backhoe dig depth for a fixed dipper on the 3CX PLUS 15 or 4CX PRO 15, so the dig depth cannot be checked; a JCB dealer should confirm it.
10The transport height limit is 138 inches; this model with this dipper is 139 inches tall.
11The transport height limit is 150 inches; this model with this dipper is 156 inches tall.
12The job needs a travel speed of 27 mph; the top gear of this model gives 26 mph (data sheet value rounded down).
13The job needs a travel speed of 32 mph; the top gear of this model gives 31 mph (data sheet value rounded down).
14All-wheel steer and crab steering are listed only for the 4CX PRO models; this model has 2-wheel steer only.
15The operating weight limit is 18,613 lb; this configuration weighs 18,614 lb.
16The quote states an operating weight of 17,500 lb; this configuration weighs 17,983 lb.
17The quote states a dig depth of 240 inches; this model with this dipper reaches 222 inches.
18The specification gives no operating weight for this combination of model, dipper, thumb and bucket (its weights assume the 6-in-1 shovel and list extending dipper and thumb additions only for some models), so the weight limit cannot be checked; a JCB dealer should confirm it.
19The operating weight limit is 19,500 lb; this configuration weighs 20,852 lb.
20The order has 0 machines; it needs at least 1.

  

  

    
Scenarios and results
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The recorded result of the validator for each scenario on this page: the request the AI agent sent, the verdict, and every finding, in the order they appear above.

    
1. Cab and thumb fleet: Three 4CX PRO 15 machines with cab and thumb under a trailer weight limit

    
The agent's request. Please quote 3 JCB 4CX PRO 15 backhoe loaders with the inner box extending dipper and the 6-in-1 shovel, with the cab and the thumb. The job needs a dig depth of 210 inches, a loader lift capacity of 9,000 lb at full height, an operating weight of no more than 19,500 lb and 100 gross horsepower. The quote states a dig depth of 241 inches and an operating weight of 20,852 lb. It is ready to send.

    
Verdict: Blocked.

    
    
      
  • Operating weight over the limit. The operating weight limit is 19,500 lb; this configuration weighs 20,852 lb.
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2. Cab and thumb fleet: The agent resubmits after fixing the errors

    
The agent's request. Please quote 3 JCB 4CX PRO 14 backhoe loaders with the inner box extending dipper and the 6-in-1 shovel, with the cab and the thumb. The job needs a dig depth of 210 inches, a loader lift capacity of 9,000 lb at full height, an operating weight of no more than 19,500 lb and 100 gross horsepower. The quote states a dig depth of 222 inches and an operating weight of 19,494 lb. It is ready to send.

    
Verdict: Allowed.

    
    
      
  • Order summary. 3 machine(s) with 109 gross hp, a dig depth of 222 inches, a transport height of 139 inches, a loader lift of 9652 lb at full height and a top gear of 26 mph, operating weight 19,494 lb.
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3. Utility trenching crew: Three 3CX PLUS 14 machines with the fixed dipper for a trenching crew

    
The agent's request. Please quote 3 JCB 3CX PLUS 14 backhoe loaders with the fixed dipper and the 6-in-1 shovel. The job needs a dig depth of 204 inches, a loader lift capacity of 8,000 lb at full height, a travel speed of 20 mph and 100 gross horsepower. The quote states a dig depth of 175 inches. It is ready to send.

    
Verdict: Blocked.

    
    
      
  • Dig depth short. The job needs a dig depth of 204 inches; this model with this dipper reaches 175 inches (SAE maximum dig depth, dipper extended where it extends).
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4. Utility trenching crew: The agent resubmits after fixing the errors

    
The agent's request. Please quote 3 JCB 3CX PLUS 14 backhoe loaders with the inner box extending dipper and the 6-in-1 shovel. The job needs a dig depth of 204 inches, a loader lift capacity of 8,000 lb at full height, a travel speed of 20 mph and 100 gross horsepower. The quote states a dig depth of 222 inches. It is ready to send.

    
Verdict: Allowed.

    
    
      
  • Order summary. 3 machine(s) with 109 gross hp, a dig depth of 222 inches, a transport height of 139 inches, a loader lift of 8649 lb at full height and a top gear of 26 mph, operating weight 17,983 lb.
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5. Low-clearance haul route: Three 3CX PLUS 15 machines with the outer box dipper for a low-clearance haul route

    
The agent's request. Please quote 3 JCB 3CX PLUS 15 backhoe loaders with the outer box extending dipper and the 6-in-1 shovel. The job needs a dig depth of 200 inches, a loader lift capacity of 8,000 lb at full height, a transport height of no more than 150 inches and 100 gross horsepower. The quote states a dig depth of 240 inches. It is ready to send.

    
Verdict: Blocked.

    
    
      
  • Transport height over the limit. The transport height limit is 150 inches; this model with this dipper is 156 inches tall.
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6. Low-clearance haul route: The agent resubmits after fixing the errors

    
The agent's request. Please quote 3 JCB 3CX PLUS 14 backhoe loaders with the outer box extending dipper and the 6-in-1 shovel. The job needs a dig depth of 200 inches, a loader lift capacity of 8,000 lb at full height, a transport height of no more than 150 inches and 100 gross horsepower. The quote states a dig depth of 216 inches. It is ready to send.

    
Verdict: Allowed.

    
    
      
  • Order summary. 3 machine(s) with 109 gross hp, a dig depth of 216 inches, a transport height of 137 inches, a loader lift of 8649 lb at full height and a top gear of 26 mph, operating weight 18,027 lb.
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Narration transcript
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The text of the narrated walkthrough, step by step.

    
    
      
  1. Welcome to a demo of Predictika's Validator. An AI sales agent prepares an order for JCB 3CX and 4CX centermount backhoe loaders: which model (3CX, 3CX PLUS 14 or 15, 3CX PRO 14, 4CX PRO 14 or 15), which dipper, bucket, and more. Before it goes out, the agent sends it to Predictika, which checks it against a declarative model of the figures in JCB's public specification brochure and returns a verdict, every reason and the figures it computed.
    2. 
      
  2. I will start with the first request by the agent.
    3. 
      
  3. The agent says. Please quote 3 JCB 4CX PRO 15 backhoe loaders with the inner box extending dipper and the 6-in-1 shovel, with the cab and the thumb. The job needs a dig depth of 210 inches, a loader lift capacity of 9,000 lb at full height, an operating weight of no more than 19,500 lb and 100 gross horsepower. The rest of the request is on screen. The quote states a dig depth of 241 inches and an operating weight of 20,852 lb.
    4. 
      
  4. Before it goes out, the agent calls the validator.
    5. 
      
  5. Blocked, with one finding, all in one answer. The operating weight limit is 19,500 lb; this configuration weighs 20,852 lb.
    6. 
      
  6. The validator returned one blocking finding in one answer. A check that reads one field at a time would pass most of this; it shows only when the choices in the quote are checked against each other.
    7. 
      
  7. What this shows: for operating weight built from the base weight and the published additions, a rules-based CPQ is error-prone for this.
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  8. Now the agent resubmits.
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  9. The corrected request. It changes the model to JCB 4CX PRO 14, the stated dig depth as to 222 inches and the stated operating weight as to 19,494 lb.
    10. 
      
  10. It calls the validator again.
    11. 
      
  11. This time the validator clears it.
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  12. The earlier finding is cleared, and the validator's figure matches the quote.
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  13. One problem caught in one call, fixed in one pass, and a clean quote. That is the value of Predictika's validator: catching mistakes before they reach the customer.
    14.