Specifications (Sr-70); Engine; Transmission; Drive Pumps - Terex ASV SR70 Service & Repair Manual

Rubber Track Loader
2. Technical Specifications & Service Tools
SR-70 Specifications

Engine

- Model: Perkins 804C-33T
- Displacement: 3.3 liter
- Gross horsepower: 71 hp (53 kW)
- Torque: 173 lb-ft. (234 Nm)
- Idle rpm: 1000 (low idle), 2600 (high idle)
- Average water /thermostat temperature: 190°F,
87.8°C

Transmission

- Model: Cat A22VG45 tandem (Rexroth)

Drive Pumps

- Displacement: 2.7459 in3/rev (45 cc/rev)
- Relief pressure: 5500 psi (380 bar)
- Flow: 30.91 gpm (117 lpm) @ 2600 rpm (per
pump)

Charge Pump

- Displacement: 1.373 in3/rev (22.5 cc/rev)
- Relief pressure: 475 +/- 30 psi (32.75 bar)
- Flow: 15.4 gpm (58.3 lpm) @2600 rpm

Drive Motors

- Model: Rexroth MCR 05 C
- Displacement: 37.8 in3/rev (620 cc/rev)
Pilot Controls (Joysticks)
- Model: Rexroth 08-351

Auxiliary Pump

- Make: Rexroth
- Type: Axial Piston, Variable Load Sense
- Displacement: 2.75 in3/rev (45 cc/rev)
- Max Flow: 30 gpm (113.6 lpm) @ 2600 rpm
- Relief pressure: 3000 psi (20,680 kPa)
- Marginal (Standby) Pressure: 218 psi (1,503 kPa)
- Cooling/filtering: Oil is filtered and cooled at all
times. In auxiliary mode, the oil is filtered after the
attachment to protect the machine if the attach-
ment motor fails or contaminants are introduced
from the quick couplers.

Lift Arm Control Valve

- Make: Rexroth
- Type: Load Sense

Oil Cooler

- Operating pressure: 150 psi (1034 kPa)
- Bypass relief pressure: 80 psi (689 kPa)
- Hot oil sending unit: 225°F (107.2°C)
- Avg. oil operating temp. 50-60°F above ambient.
(High flow application 80°F above ambient.)
Critical Torque Specs
- Transmission Mounting Bolts
--
- Drive Sprocket Drive Teeth Bolts
--
- 10" Idler Wheel Retaining Nut
--
- 15" Idler Wheel Retaining Nut
--
- Drive Sprocket Lug Nut
--
- Drive Motor Mounting Bolts
--

Cycle Times

• Lift-Arm up: 3.5 seconds (+/- .35 seconds)
• Lift-Arm Down: 3.3 seconds (+/- .33 seconds)
• Bucket Curl: 1.7 seconds (+/- .17 seconds)
• Bucket Dump: 1.9 seconds (+/- .19 seconds)

Service Tools

Listed below are common service tools which are iden-
tified and utilized in the service procedures described
in this manual. Use tools recommended by ASV when-
ever possible to reduce risk of injury and or machine
damage during service.
• ASV Jack Stands (2) (ASV P/N: 0402-900)
• Heavy Duty Hydraulic Jack (5-ton rating)
• Test Gauge Kit (ASV P/N: 0402-935)
• Ratchet Strap
• Long Pry Bar(s)
• ASV Service Cart (0402-871)
2-2
https://tractormanualz.com/
85 ft-lb. w/Blue Loctite
88 ft-lb. -Dry
350 ft-lb. -Dry
350 ft-lb. -Dry
129 ft-lb. -Dry
129 ft-lbs. -Dry