-
- About Us
- Cooperation
- News
- Offer
- E-shop
- Contact
- TRACK FINDER
- WYSZUKIWARKA SZYB
- Kategorie produktowe
-
ALL CATEGORIES
-
-
-
-
-
-
SLEW SYSTEM
-
-
-
-
-
AXLES
- TIE RODS
- KIT SPIDER FOR DRIVE SHAFTS
- DIFFERENTIAL
- MOUNT THE KNUCKLE
- KIT SPIDER FOR AXLE SHAFTS
- HUB / GEAR REDUCTION
- PROPSHAFTS
- SOLENOID VALVES / COILS
- FLANGES / COUPLING YOKES
- BEARINGS
- BUSHES / WASHERS MOUNT AXLE
- AXLE / DIFFERENTIAL HOUSING
- DRIVESHAFTS / CENTER JOINTS
- BOLTS / NUTS / STRAPS
- LOCK / CIRCLIP / CLIP
- CROWN WHEEL AND PINIONS
- SEALS
- OTHERS
-
-
-
-
-
-
-
-
ENGINE
-
-
-
-
-
COILS / SOLENOID VALVES
-
SWIVELS / TURNING JOINTS
-
PUMPS / STEERING VALVES / MOTORS
-
-
-
VALVES
-
HYDRAULIC HOSES / PIPES
-
RAMS
-
ACCUMULATORS
-
QUICKHITCHES
-
-
-
BOLTS / NUTS / WASHERS
-
PUMP DRIVESHAFTS
-
SEALS VALVES / PUMPS
-
OTHERS
-
-
-
-
-
-
-
TIMING
-
EQUIPMENT
-
-
LUBRICATION SYSTEM
-
-
INDUCTION / EXHAUST SYSTEM
-
SEALS / GASKET SETS
-
ENGINE MOUNTING
-
SERVICE TOOLS
-
-
-
-
-
-
STABILIZERS
-
-
-
-
-
-
FUSES / FUSE BOXES
-
RELAYS / FLASHERS
-
REVERSE ALARM
-
-
HEATERS / BLOWERS
-
BATTERY ISOLATER SWITCH
-
-
-
-
-
OILS
-
FLUIDS
-
-
-
PAINTS
-
-
-
-
-
-
-
GLASS / CAB GLAZING
-
-
-
RUBBER SEALS - GLASS
-
ASSEMBLY KITS / ADHESIVES
-
-
-
-
-
ADAPTERS
-
BOLTS / LOCKS
-
-
-
-
HYDRAULIC INSTALLATIONS
-
TOEPLATES
-
TOOTH RIPPER
-
-
-
HYDRAULIC HAMMERS / TOOLS
-
PLOWS
-
QUICKHITCHES
-
FORKS
-
-
-
EARTH DRILL / AUGER
-
SWEEPER / COMPONENTS
-
SWINGOTILT / PLATFORMS
-
-
-
-
-
ACCESSORIES
-
DECAL / STICKERS
-
-
-
GADGETS
-
CLOTHES
-
FAN ZONE
-
-
-
- SPARE PARTS SUITABLE FOR
- JCB
- CAT
- VOLVO
- KOMATSU
- CASE
- NEW HOLLAND
Weak Hydraulics in an Excavator – Causes, Diagnostics and Repair
Why Do Excavator Hydraulics Lose Power?
The hydraulic system is one of the most important systems in any excavator. It is responsible for the operation of the boom, bucket, arm, and other attachments. When the hydraulics start to weaken, the machine loses efficiency and the work becomes slower and less precise.
Weak hydraulics in an excavator can result from both minor issues and more serious failures within the hydraulic system. In many cases, the problem appears gradually – operators may first notice slower attachment movements or reduced lifting force.
Does Weak Hydraulics Always Mean a Serious Failure?
Not always. In many cases, the problem can be caused by simple issues such as:
-
low hydraulic oil level
-
clogged hydraulic filters
-
air in the hydraulic system
However, if the symptoms persist for a long time, it may indicate a worn hydraulic pump, damaged valves, or leaking hydraulic lines.
Most Common Causes of Weak Hydraulics in an Excavator
1. Low Level or Poor Quality Hydraulic Oil
Symptoms:
-
reduced lifting force
-
slower arm movements
-
overheating of the hydraulic system
Possible causes:
-
hydraulic oil leaks
-
lack of regular oil changes
-
use of incorrect hydraulic oil
2. Clogged Hydraulic Filters
Symptoms:
-
reduced hydraulic performance
-
delayed attachment response
-
increased pressure in the system
Possible causes:
-
lack of regular filter replacement
-
contamination in hydraulic oil
-
wear of hydraulic system components
3. Worn Hydraulic Pump
Symptoms:
-
noticeable drop in hydraulic power
-
difficulty lifting heavy loads
-
noise from the hydraulic pump
Possible causes:
-
natural wear of pump components
-
operation with contaminated oil
-
long-term machine overload
4. Leaks in the Hydraulic System
Symptoms:
-
hydraulic oil leaks
-
pressure drops in the system
-
uneven cylinder operation
Possible causes:
-
damaged hydraulic hoses
-
worn cylinder seals
-
loose hydraulic connections
How to Diagnose Weak Hydraulics in an Excavator?
To properly diagnose hydraulic problems, it is recommended to follow a few basic steps:
-
Check the hydraulic oil level and condition.
-
Inspect hydraulic filters and replace them if necessary.
-
Check hoses and cylinders for leaks.
-
Measure pressure in the hydraulic system.
-
Inspect the condition of the hydraulic pump and control valves.
Proper diagnostics help quickly identify the source of the problem and prevent more serious machine damage.
How to Fix Weak Hydraulics in an Excavator?
Depending on the cause of the issue, repairs may include:
-
replacing hydraulic filters
-
replacing or topping up hydraulic oil
-
rebuilding or replacing the hydraulic pump
-
repairing hydraulic cylinders
-
replacing hoses and seals
With proper repairs, the hydraulic system can regain full efficiency and the excavator can return to normal operation.
FAQ – Frequently Asked Questions About Weak Excavator Hydraulics
1. Why are my excavator hydraulics slower than before?
The most common causes are low hydraulic oil levels, clogged filters, or a worn hydraulic pump.
2. Can weak hydraulics be caused by air in the system?
Yes. Air in the hydraulic system can cause pressure drops and irregular cylinder operation.
3. How can I check if the hydraulic pump is worn?
The best method is to measure hydraulic system pressure. If the pressure is too low, the pump may need rebuilding or replacement.
4. Can replacing hydraulic filters improve excavator performance?
Yes. Clogged filters restrict oil flow, which can reduce hydraulic efficiency.
5. How can hydraulic problems in an excavator be prevented?
Regular maintenance is essential: replacing hydraulic oil, changing filters, and checking the system for leaks.
Summary
Weak hydraulics in an excavator can significantly reduce machine performance. The most common causes include low hydraulic oil levels, clogged filters, a worn hydraulic pump, or leaks in the system. Regular diagnostics and timely replacement of worn components help prevent costly repairs and machine downtime.
Related posts
WE OFFER PRODUCTS OF THE BEST BRANDS


















ul. Podkarpacka 57A, 35-082 Rzeszów
NIP: 813-352-97-49 REGON: 180286726
Opening hours
Telephone support - Monday - Friday (8:00 AM – 5:00 PM)
Order pick-up - Monday - Friday (8:00 AM – 4:30 PM)
[email protected]
[email protected]
Gadu-Gadu communicator
GG: 4185846 - Daniel
+48 17 864 31 00
+48 17 864 00 24
+48 17 864 25 96
Mobile phone
+48 607-700-547
+48 695-944-818
+48 691-330-531
+48 690-906-751
Fax
+48 17 864 31 20
