Ottawa T‑2 terminal tractor
Ottawa Yard Horse
Ottawa Yard Mule

The pump converts mechanical energy (from the engine or motor) into hydraulic energy, supplying the pressure needed to move:

• Cylinders

• Hydraulic motors

• Valves

• Steering systems

2. Power Hydraulic Functions

These pumps operate essential equipment functions, such as:

• Dump truck hoists

• Snowplow lifting/angling

• Loader arms and buckets

• Forklift lifting systems

• Tractors and skid steer attachments

• Winches and stabilizers

3. Provide Constant, Reliable Flow

Gear pumps supply a steady, continuous flow of hydraulic oil, making them ideal for:

• Heavy-duty equipment

• Long operating hours

• High-pressure applications

4. Ensure Smooth and Controlled Operation

A properly functioning gear pump helps:

• Maintain smooth hydraulic response

• Prevent jerky or slow equipment movement

• Improve operator control and safety

5. Support Work Efficiency

Because these pumps are powerful, simple, and durable, they enable machines to:

• Lift heavy loads

• Move large components

• Perform repetitive tasks quickly and reliably

1. Slow or Weak Hydraulic Functions

• Cylinders lift slowly or won’t lift at all

• Steering becomes hard or sluggish

• Attachments move weak or jerky
  This usually indicates the pump can’t build enough pressure.

2. Noisy Operation

• Whining

• Grinding

• Knocking
  This can happen when gears are worn, oil is low, or air is entering the system.

3. Overheating Hydraulic Oil

• Oil temperature rises quickly

• Hot hydraulic reservoir
  A failing pump may create excess heat due to internal wear or cavitation.

4. Excessive Vibration

• Pump shakes or vibrates during operation

• May indicate worn bearings or damaged gears

5. Foamy or Milky Hydraulic Fluid

• Signs of air in the system

• Air leaks on the suction side or damaged pump seals
  Foamy oil reduces pump effectiveness and lubrication.

6. Low Hydraulic Pressure

• Pressure gauge reading lower than normal

• Machine cannot reach full power
  Caused by worn gears, internal leakage, or pump wear.

7. Leaking Hydraulic Fluid

• Oil leaking from pump seals, fittings, or housing

• A cracked housing or worn shaft seal is common with older pumps.

8. Pump Won’t Prime or Loses Prime

• Pump fails to pick up fluid

• Cavitation noise
  Often caused by clogged filters, suction leaks, or internal pump damage.

9. Excessive Heat or Burnt Oil Smell

• Overworked pump due to internal damage

• Seized gears or restricted flow

10. Metal Shavings in Hydraulic Oil

• Indicates internal gear wear or bearing failure

• Serious sign the pump is near end of life