8600 Series
Off-Highway Series 8600
RATINGS
Straight-Thru Model
Gross Input Torque
Nm (lb-ft)
Gross Input Power
kW (hp)
Turbine Torque Net
Nm (lb-ft)
H8610
Rear Dump Truck, Coal Hauler
4881 (3600)
783 (1050)
7647 (5650)
M8610
General
4881 (3600)
783 (1050)
7647 (5650)
Oil Field
4881 (3600)
895 (1200)
8089 (5966)
Agricultural Tractor
4339 (3200)
634 (850)
7186 (5300)
S8610
Oil Field Equipment
4881 (3600)
895 (1200)
8089 (5966)
ENGINE INTERFACE
Acceptable full-load engine governed speed
1800 2300 rpm
Minimum engine idle speed range (with transmission in Drive)
550 rpm
MOUNTING
Direct
SAE No. 0 automatic flywheel housing with flexplate drive. Cradle mount using engine flywheel housing mounting pads
and transmission rear cover mounting pads with 0.625-11 inch series bolts
Remote
Side pads on transmission rear cover plus front trunnion mount
TORQUE CONVERTER
Type
Mechanical Ratios (Gear ratios do not include torque converter multiplication)
Single stage, three element, polyphase.
Model
Stall Torque Ratio
Kp-Factor* at Stall
TC-840
2.26
TC-860
Range
First
4.24 : 1
37.1 (43.2)
Second
2.32 : 1
2.33
35.0 (40.7)
Third
1.69 : 1
TC-880
2.20
31.7 (36.9)
Fourth
1.31 : 1
TC-890
1.86
28.0 (32.6)
Fifth
1.00 : 1
TC-1070
1.78
26.2 (30.5)
Sixth
0.73 : 1
TC-1078
1.84
24.6 (28.6)
Reverse 1
-5.75 : 1
Includes standard integral damper which is operational in lockup
Ratio Coverage
Forward
5.81
* Kp-Factor defines torque converter capacity. Kp = the ratio of converter pump
speed [rpm] divided by the square root of the pump torque [Nm (lb-ft)]
control system
Description
SA2195EN (2013/03)
Automatic electronic, manual electric
optional engine-driven power take-off provision
Side mount
Location
5 oclock position, as viewed from rear
PTO drive gear rating
Intermittent
59 tooth drive gear, 298 kW (400 hp)
Continuous
59 tooth drive gear, 224 kW (300 hp)
Top Mount
Location
12 oclock position, as viewed from rear
PTO drive gear rating
Intermittent
59 tooth drive gear, 298 kW (400 hp)
Continuous
59 tooth drive gear, 224 kW (300 hp)
Off-Highway Series 8600
ELECTRONIC speedometer provision
output retarder provision (option)
Description
Type
LS-TTL signal, 41 pulses per output shaft revolution
Location
Output signal from transmission TCM
Integral, hydraulic
Capacity
Torque
Power
4679 Nm (3451 lb-ft)
1029 kW (1380 hp)
SIZE
Depth (below horizontal centerline)
Length (direct mount)
2, 3
530 mm (20.9 in)
1411 mm (55.5 in)
Width
892 mm (35.1 in)
Height
Basic model
898 mm (35.3 in)
1678 kg (3700 lb)
Dry Weight
With direct mount filters
1011 mm (39.8 in)
1678 kg (3700 lb)
With top engine-driven PTO drive gear
1692 kg (3730 lb)
With park brake (17.25 x 4 in)
1746 kg (3850 lb)
With remote mount
1714 kg (3780 lb)
Oil System
Oil type
TES 439 (see www.allisontransmission.com for approved list)
Capacity excluding external circuits
79 litres (21.0 gallons)
Main circuit oil filter
Standard
Manifold for full-flow, remote mounted, replaceable element
Optional
Direct-mount full-flow, replaceable elements (2)
Cooler circuit oil filter (optional)
1. PTO ratings apply to both top and side. Combined totals cannot exceed individual ratings. 2. For remote mounting, add 279 mm (11 in).
3. Length is approximate from engine/converter mounting surface to face of typical output flange.
8000 Series
Information or specifications subject to change without notice or obligation.
www.allisontransmission.com
Replaceable element, remote-mounted
