1. Introduction
This manual provides detailed instructions and information for the Diecast Masters CAT Caterpillar 301.7 CR Next Generation Mini Hydraulic Excavator, Model 85597. This highly detailed 1:50 scale replica is part of the High Line Series, designed for collectors and display purposes. It features realistic components and interchangeable work tools, offering an authentic representation of the actual machinery.

Figure 1: The Diecast Masters CAT 301.7 CR Next Generation Mini Hydraulic Excavator model, showcasing its detailed design and compact size.
2. Safety Information
This product is a collectible scale model and is not intended for play. It contains small parts and delicate components that may pose a choking hazard or break if handled roughly. The manufacturer recommends this model for individuals aged 14 years and up.
- Keep out of reach of children under 14 years of age.
- Handle with care to prevent damage to delicate parts such as mirrors, hydraulic lines, and railings.
- Avoid placing the model in direct sunlight or extreme temperatures to prevent material degradation.

Figure 2: This model is designed as an adult collectible die-cast item, emphasizing its suitability for display and collection rather than active play.
3. Product Features
The CAT Caterpillar 301.7 CR Mini Hydraulic Excavator model boasts a range of realistic features:
- Scale: 1:50 scale replica.
- Authenticity: Authentic Caterpillar trade dress, decals, and paint.
- Tracks: Realistic metal tracks with bolt detail on each segment, and moveable rubber tracks.
- Cab Interior: Detailed cab interior with operator figure, control station, and levers.
- Boom and Stick: Full-functioning and moveable boom, stick, and bucket.
- Rotation: Excavator can rotate 360 degrees on its undercarriage.
- Dozer Blade: Front grading dozer blade.
- Detail Parts: Includes intricate details such as hydraulic lines, mirrors, and safety railings.
- Work Tools: Interchangeable work tools provided, including:
- General Duty Bucket
- Ditch Cleaning Bucket
- Auger
- Hammer

Figure 3: A visual breakdown of the model's key features, including its 1:50 scale, authentic branding, detailed cab, and interchangeable work tools.

Figure 4: The excavator model equipped with the hammer attachment, demonstrating the versatility of its interchangeable tools.

Figure 5: The excavator model shown with a standard bucket attachment, highlighting its functional boom and stick.

Figure 6: An illustration of additional details, including hydraulic lines, mirrors, safety railings, moveable rubber tracks, and bolt details.
4. Setup
Your Diecast Masters model comes in premium collector's packaging, designed to protect the model during transit and storage.
- Unboxing: Carefully remove the model from its full-color printed metal box. The model is nestled in a die-cut foam insert for protection.
- Accessory Placement: The package includes interchangeable buckets and attachments, a detailed cab interior, an operator figure, and a roof for the cab. Attach the desired work tool to the boom by gently aligning and securing it.
- Operator Figure: If the operator figure is separate, carefully place it within the detailed cab interior. Use fine-tipped tweezers if necessary for precise placement, avoiding excessive force.
- Display: Place your model on a stable, flat surface away from direct sunlight, excessive dust, or high traffic areas to prevent accidental damage.

Figure 7: The premium collector's packaging, a full-color printed metal box with a die-cut foam insert, designed to protect the model.
5. Operating Movable Parts
While primarily a display model, the CAT 301.7 CR features several movable parts for realistic posing:
- Boom, Stick, and Bucket: Gently articulate the boom, stick, and attached work tool (bucket, auger, or hammer) to desired positions. These parts are designed to move smoothly but should not be forced beyond their natural range of motion.
- Undercarriage Rotation: The upper structure of the excavator can rotate 360 degrees on its undercarriage. Hold the base firmly and gently turn the upper body.
- Dozer Blade: The front grading dozer blade can be adjusted.
- Tracks: The rubber tracks are moveable, allowing for slight adjustments in positioning.
Note: Due to the intricate nature and small scale of the model, movements should be performed slowly and carefully to avoid bending or breaking components.
6. Maintenance
Proper care will ensure the longevity and pristine condition of your collectible model:
- Cleaning: Use a soft, dry brush or a microfiber cloth to gently remove dust from the model. For stubborn dust in crevices, a can of compressed air (used carefully and from a distance) can be effective. Avoid using liquid cleaners or abrasive materials.
- Handling: Always handle the model by its main body or sturdy parts. Avoid touching delicate components like mirrors, antennas, or hydraulic lines, as they can bend or break easily.
- Storage: When not on display, store the model in its original foam-lined metal box to protect it from dust and accidental impacts.
7. Troubleshooting
As a static display model, extensive troubleshooting is generally not required. However, consider the following if issues arise:
- Stiff Movable Parts: If a movable part (boom, stick, etc.) feels stiff, apply very gentle, consistent pressure. Do not force it. Ensure no foreign objects are obstructing the movement.
- Detached Small Parts: In the rare event a small part detaches, it can often be reattached using a small amount of model-grade super glue or epoxy, applied with a toothpick. Exercise extreme caution to avoid gluing movable joints.
- Paint Chipping: Minor paint chips are rare but can occur. Touch-up paint matching the Caterpillar yellow can be used by experienced modelers.
8. Specifications
| Attribute | Detail |
|---|---|
| Model Name | CAT Caterpillar 301.7 CR Next Generation Mini Hydraulic Excavator |
| Model Number | 85597 |
| Brand | Diecast Masters |
| Scale | 1:50 |
| Product Dimensions (L x W x H) | Approximately 2.75 x 1.12 x 1.87 inches |
| Item Weight | 6.4 ounces |
| Recommended Age | 14 years and up |
| Material | Die-cast metal with plastic components |
9. What's in the Box
The Diecast Masters CAT Caterpillar 301.7 CR Mini Hydraulic Excavator package includes:
- 1x CAT Caterpillar 301.7 CR Mini Hydraulic Excavator Model (Model 85597)
- Interchangeable Buckets and Attachments (General Duty Bucket, Ditch Cleaning Bucket, Auger, Hammer)
- Detailed Cab Interior
- Operator Figure
- Roof for the Cab
- Collectible, full-color printed metal box with die-cut foam insert
10. Warranty and Support
Diecast Masters models are crafted with high attention to detail and quality. While specific warranty information is not provided in this manual, for any inquiries regarding manufacturing defects or support, please contact Diecast Masters customer service directly through their official website or the retailer from whom the product was purchased.
For optimal preservation of your collectible, adhere to the maintenance guidelines provided in this manual.