there is a pressure adjustment on block where hose threads are it has a Allen screw in the middle of a hex nut if you break hex nut loose and turn Allen screw counterclockwise that will lower pressure.
NorTrac Single-Acting Dump Trailer Power Unit, 12V, 1.5 GPM, 2900 PSI, Horizontal Mount

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Shipping:
Free shipping (lower 48 states) - Available nowStore Pickup:
Not available - online only
- Rapid lift/raise function
- Low amperage draw
- Built tough for long-lasting life
- 1.5 GPM flow rate with 2.1cc displacement
- 3,000 max. RPM and 2,900 max. PSI
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Description
Key Specs
Reviews
Q & A
Accessories
Warranty
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Product Summary
What's Included
- (1) DC single-acting dump trailer power unit
Downloads
Features + Benefits
- Rapid lift/raise function
- Low amperage draw
- Built tough for long-lasting life
- 1.5 GPM flow rate with 2.1cc displacement
- 3,000 max. RPM and 2,900 max. PSI
- 20.5in.L x 8in.W x 9.5in.H
- 2.64-gallon steel tank
Key Specs
| Attribute | Specification |
|---|---|
item# | 47370 |
Brand | NorTrac |
Manufacturer's Warranty | 1 year limited warranty |
Ship Weight | 37.0 LB |
Max. Flow Rate | 1.5 GPM |
Max. PSI | 2,900 |
Max. RPM | 3,000 |
| Attribute | Specification |
|---|---|
Power Source | Battery |
Port Outlet Size | 9/16 in |
Thread Type | SAE |
Reservoir Capacity | 2.64 Gal |
Volts | 12 |
Action | Single Acting |
Reviews
Questions & Answers
Questions
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· 7 years ago
can the max pressure be adjusted by spring or shims? Need to drop to 1500-1800 psi.
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Hydraulicjay· 6 years ago
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NorTracExpert7· 7 years ago
The spring setting can be backed out with the adjustment screw to adjust the pressure.
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· 10 years ago
What type of oil is used in this unit?
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Fluidmotionhydraulics· 10 years ago
In warmer climates or when the unit is being used in long duty cycles, I would use an AW 68 blend. It is thicker and will hold up when temperature becomes a problem. Tractor and Hydraulic fluid with 32 and 46 viscosity should work fine for short cycle work. Make sure that the oil is contaminant free. Even oil from sealed 5 gallon buckets can have contaminants.
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NorTracExpert11· 10 years ago
N46 hydraulic oil is recommended for this power unit. Tractor hydraulic fluid can be used as long as the viscosity is between 15-46 CST.
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· 11 years ago
How many pounds will this unit hoist?
I am looking for a unit that will hoist at least 7 tons.
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Fluidmotionhydraulics· 10 years ago
The working pressure says 2,900 PSI. When calculating force in lbs., you multiply the PSI X Piston surface area.
Example: a cylinder has a 2" bore and a 1" rod diameter.
on the Bore End, the surface area is = 3.14 sq in
One the Rod End, the surface area is 3.14" - rod area =2.355
Now that you know the area, multiply by the max PSI of the unit.
Bore end: 2,900 x 3.14 = 9106 lbs of force (4.5 tons)
Rod End: 2,900 x 2.36 = 6844 lbs of force (3.4 tons)to achieve 7 tons, you can use this pump paired with a 2.5" bore cylinder or higher. I would recommend higher, because you would be at the limits of the pump.
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NorTracExpert9· 11 years ago
This unit does not offer a weight capacity for a hoist type application. The weight capacity would depend on the hydraulic cylinder you use in the hoisting application.
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· 3 years ago
What is the dimensions on the reservoir?
1 answer-
NorTracExpert12· 3 years ago
The reservoir alone measures 10-1/4" long x 7-7/8" wide x 8-1/4" high. With the bottom mounting bracket and filling cap, it is 11" long x 7-7/8" wide x 9-5/16" high.
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· 4 years ago
Sizes of the tank
1 answer-
NorTracExpert38· 4 years ago
This has a 2.64 gallon tank.
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· 5 years ago
What is the replacement motor part#
1 answer-
NorTracExpert12· 5 years ago
The motor is part #DM11-1WWU-3BC2R-B. To order, please call our parts department at 1.800.521.0438
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Anonymous· 5 years ago
do you carrie a seal kit for this unit
1 answer-
NorTracExpert31· 5 years ago
Replacement parts are available through our parts department at 1-800-657-0516.
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· 5 years ago
can you add additional tank to increase oil capacity knowing vent has to be addressed .I need 20 QT
1 answer-
NorTracExpert11· 5 years ago
It is not recommended to increase the tank capacity. It would be recommended to purchase item number 53464 with a 5.3 gallon (20 liter) tank.
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· 5 years ago
Where is the negative connection on this system
1 answer-
NorTracExpert7· 5 years ago
There is no ground wire to connect on this unit. The ground for the power unit is through the mounting bolts in the center block.
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· 7 years ago
how much current does this unit draw?
1 answer-
NorTracExpert30· 7 years ago
This NorTrac Power unit draws 80 amps at no load and 250 amps at full load.
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Warranty
Manufacturer's Warranty
1 year limited warranty
Extend Your Warranty Coverage with a Northern Protection Plan (NPP)
Repair Plan — 1 Year
A Northern Protection Plan is available after adding the product to your shopping cart.
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Specifications
1.5 GPM
7 GPM
1.4 GPM
1.4 GPM
2,900
900
3,000
2,500
3,000
3,600
2,700
1,750
Battery
Gas
Electric
Electric
9/16 in
1/2 in
1/4 in
9/16 in
SAE
Other
Other
SAE
2.64 Gal
5.6 Gal
0.75 Gal
2.5 Gal
12
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12
12
Single Acting
Double Acting
Double Acting
Single Acting
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1/2 in
1/4 in
9/16 in
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4.6
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DC
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