Allison CRT3331

Allison CRT3331

Description

RATINGS

Net Input Torque Lb-Ft (N.M)Net Input Power HP (kw)Vocations
CRT3331-3 Straight Thru375 (508)70 (52)Foundation Drilling Rigs, Auger Drilling, Oil Field Pulling Units, Material Handling, Forklifts, Waterwell Drilling Rigs, Marine Winches, Barge Winches, Waterfall Winches, Custom.
CRT3331-1 Drop Box375 (508)70 (52)Forklifts, Material Handling, Winches, Loaders, Skidders, Trucks, Railcar Movers, Lifting, Hoisting, Locomotive, Cranes.

ENGINE INTERFACE

  • Acceptable full-load engine governed speed: 1900 – 3000* rpm
  • Minimum engine idle speed (transmission in Drive) 500 rpm

MOUNTING

  • Direct: SAE No.3 Cradle mount using engine flywheel hsg mounting pads, four bolts on rear cover and four-bolt on dropbox
  • Remote: Front trunnion support, four-bolt on rear and four-bolt on drop box.

TORQUE CONVERTER

ModelStall Torque RatioKp-Factor* at Stall
TC-3203.5064.4 (75.0)
TC-3503.0934.7 (40.4)
TC-3702.4740.7 (47.3)

MECHANICAL RATIOS (Gear ratios do not include torque converter multiplication)

RangeForwardReverse
Low8.00 : 17.75 : 1
Intermediate2.09 : 12.81 : 1
High1.00 : 10.97 : 1

NOTE:

  • Range Gearing – Constant Mesh, Spur, Planetary.
  • Clutches – Hydraulic-actuated, spring-released, oil-cooled, multidisk, self-adjusting (automatic compensation for wear)
  • SAE 3 flywheel housing with grease gear or flex disk drive mounting Remote mounted (front) Input flange or Torqmatic® coupling Direct and remote mounted (rear) 6-hole mounting pad on each side (-1 models); 4 tapped holes in adapter housing (-3 models).

Drop Box Ratios: 0.66 : 1 (standard), 0.79 : 1 (optional), 1.62 : 1 (CRT3331-1 Drop Box Model Only)

CONTROL SYSTEM

Description: Hydraulic, Power Shift with Range Selection Spool & Direction Shifting Spool. Manual Inching valve or clutch cutoff valve are optional.

Shift Sequences Transmission is “Power Shifted” to select each gear without applying a clutch. Revers to Forward operation requires vehicle or machine to have output shaft fully stopped from rotating.
Driver-to-Transmission InterfaceCustomer-furnished cab-mounted shift selector

PHYSICAL DESCRIPTION

LengthDry  Weight
Drop Box -1 Models (transfer gear)43.61 in (1108 mm)1260 lbs (372 kg)
Straight Thru -3 Models (sump tank)46.59 in (1183 mm)955 lbs (434 kg)
Height (with direct mount oil cooler)-1 Drop Box Models, 39.17 in (995 mm)-3 Straight Thru Models, 27.89 in (708 mm)

PUMP HUB GEAR, CHARGE PUMP-DRIVEN POWER TAKE-OFF PROVISION (OPTION)

PTO driveEngine-driven spur gear
PTO mounting padSAE C, 4 Bolt PTO Pad (located on back side of charge pump)
PTO drive gear ratio7 o’clock position 1.00 x engine speed
PTO drive gear rating
  • Intermittent: 80 hp (60 kW)
  • Continuous: 50 hp (37 kW)

OIL SYSTEM

Oil Type15-40 (motor oil), 0-30W (motor oil), ATF (Current), Allison Transynd
Capacity Excluding external circuits
  • CTR3000-1 Drop Box Models 71/2 gal (28 liters)
  • CTR3000-3 Straight Thru Models 9 gal (34 liters)
Sump Tank for 3 models is standard or optional, Copeland Style 1, Style 2 & Style 3 (customer furnished option available)
Main Circuit Oil FilterReplaceable element, Remote mounted
Cooler circuit oil filter (optional)Direct Mount (Top of Converter), or Remote-mount.

SPEEDOMETER PROVISIONS (OPTIONAL)

  • TYPE: SEA Heavy duty 5/32 inch drive
  • Speed: Same as transmission range speed.

DROP BOX OUTPUT OPTIONS – iNTEGRAL DROP BOX

position Boutput Flange (see flange list) with optional output parking brake on straight thru models only, brake type drum with shoes. Output flange available on drop box models)
position Coutput Flange (see flange list), Heavy Duty output is available
position Doutput Flange (see flange list), Heavy Duty output is available. Optional output parking brake is available on drop box models, brake type drum with shoes.