Case 688 Crawler Excavator Specs

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The Case 688 crawler excavator produced in 1987-2015, is listed with an operating weight of 29,476 lb (13.4 t), engine power of 90 hp (67 kW), a bucket capacity of 0.99 yd³ (0.76 m³) and a maximum digging depth of 18.5 ft (5.63 m).

Case Crawler Excavator Specifications

Crawler Excavator • 1987-2015 • 4T 390

Weight: 29,476 lb (13.4 t)Power: 90 hp (67 kW)Bucket: 0.99 yd³ (0.76 m³)Dig depth: 18.5 ft (5.63 m)

Key specifications

29,476 lb (13.4 t)Operating weight
90 hp (67 kW)Engine power
0.99 yd³ (0.76 m³)Bucket capacity
18.5 ft (5.63 m)Digging depth
27.2 ft (8.29 m)Horizontal reach
18,884 lbf (84 kN)Tear-out force
24 in (610 mm)Track width
1987-2015Years

Useful excavator charts

Charts appear only when enough usable specifications are available.

Digging geometry
Dig depth

18.5 ft

Reach

27.2 ft

Transport dimensions
Length

25.3 ft

Width

8.4 ft

Height

9.5 ft

Bucket capacity range
Minimum

0.4 yd³

Listed

1 yd³

Maximum

1 yd³

Model spec snapshot
Main numeric specifications for this excavator.
29,476 lbWeight
90 hpPower
0.99 yd³Bucket
18,884 lbfTear-out

How the Case 688 compares

Comparison is against Case crawler excavators in the same broad operating-weight class where enough comparable data exists.

Engine power
90 hp
19% below avg
5th percentile
Bucket capacity
0.99 yd³
In line with avg
50th percentile
Digging depth
18.5 ft
10% below avg
22nd percentile
Horizontal reach
27.2 ft
8% below avg
23rd percentile
Engine power90 hp
Low 88 hpAverage 111 hpHigh 162 hp

About 19% below the peer average.

Bucket capacity0.99 yd³
Low 0.37 yd³Average 1 yd³High 1.5 yd³

In line with the peer average.

Digging depth18.5 ft
Low 17.1 ftAverage 20.4 ftHigh 33.2 ft

About 10% below the peer average.

Horizontal reach27.2 ft
Low 26.1 ftAverage 29.4 ftHigh 40.3 ft

About 8% below the peer average.

Tear-out force18,884 lbf
Low 9,096 lbfAverage 20,576 lbfHigh 36,194 lbf

About 8% below the peer average.

This model Peer average

Crawler excavator information

Manufacturer Case
Model 688
Years of manufacture 1987-2015

Operating specifications

Operating weight 29,476 lb (13.4 t)
Bucket capacity 0.99 yd³ (0.76 m³)
Minimum bucket capacity 0.41 yd³ (0.31 m³)
Maximum bucket capacity 0.99 yd³ (0.76 m³)
Bucket width 3.4 ft (1.04 m)
Maximum digging depth 18.5 ft (5.63 m)
Maximum horizontal reach 27.2 ft (8.29 m)
Tear-out force 18,884 lbf (84 kN)

Engine and emissions

Engine manufacturer Case
Engine model 4T 390
Engine power 90 hp (67 kW)
Displacement 239 cu in (3.9 L)
Cylinders 4
Cylinder bore × stroke 4.02 × 4.72 in (102 × 120 mm)
Maximum torque 250 lb-ft (339 Nm)
RPM at maximum torque 1500 rpm
Diesel particulate filter No

Dimensions and transport

Transport length 25.3 ft (7.7 m)
Transport width 8.4 ft (2.57 m)
Transport height 9.5 ft (2.9 m)
Track width 24 in (610 mm)

Equipment and features

Air conditioning No
Blade No
Cabin adjustment No
Material handling excavator No
Overload alert No
Hydraulic quick hitch No
Mechanical quick hitch No
Track adjustment No

Disclaimer: Specifications should be verified against the official machine documentation and confirmed on the CASE Construction Equipment USA website.

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