Fluid grades for each ambient temperature, the lubrication chart, and what the emergency bypass does when a switch fails: the Link-Belt LS-2800 operator manual PDF settles them for this LS-series hydraulic excavator in 112 pages, Book No. WDL2802-5E. Inspection and maintenance fills close to a third of the book, with a check list keyed to the hour meter, periodic and irregular service, and troubleshooting charts that match your symptom to a likely cause. Hydraulic system and electric circuit diagrams sit with the instruments and operation modes, and the back section covers hammer installation, oil flow control and the long front relief valve settings. Fill each lower roller with 190cc (6.3oz) and the take-up roller with 170cc (5.5oz); the pilot pump relief valve setting is 569 psi (40 kgf/cm²). A roller refill stalls when nobody knows the volume. Bookmarks and a live text layer take you straight to the page with the answer.
What's Inside This Link-Belt LS-2800CII Operator Manual
| System | Pages | Key Topics |
|---|---|---|
| Operation | 7-42 | Safety, Location of Components, Hydraulic System, Electric Circuit, Instruments and Controls, Operation Modes, One Touch Idle and Switch Operation |
| Operating Instructions | 43-60 | Cautions for Use of New Machine, Engine, Warm Up Operation, Cautions for Operation, Operations, Pulling Out From Soft Ground, Bucket Play, Turning Over and Replacement of Bucket |
| Inspection and Maintenance | 61-94 | Caution for Inspection, Lubrication Chart, Maintenance Check List, Periodic Maintenance, Irregular Maintenance, Inspections, Measuring Pressure, Troubleshooting |
| Special Attachments | 95-112 | Hydraulic Hammer Attachment (Selection of the Hammer Attachment, Installation of the Hammer Attachment, Control of the Hydraulic Oil Flow and Pressure, Hydraulic Oil Maintenance) |
Quick Reference Specifications
| Specification | Value | Page |
|---|---|---|
| Take-up Roller Oil Capacity | 170cc (5.5oz) | p. 67 |
| Upper Roller Oil Capacity | 100-110cc (3.3-3.6oz) | p. 67 |
| Pilot pump relief valve setting pressure | 569 psi (40 kgf/cm²) | p. 87 |
| Pilot pump relief valve pressure per turn of adjustment screw | 228 psi (16 kgf/cm²) | p. 87 |
| Main relief valve pressure for each turn of adjustment screw | 2844 psi (200 kg/cm²) | p. 88 |
| Port relief valve pressure for each turn of adjustment screw | 2844 psi (200 kg/cm²) | p. 88 |
| Engine oil replacement interval | 250 hours | p. 74 |
| Hydraulic sump tank oil replacement interval | 2000 hours | p. 76 |
| Lower Roller oil capacity | 190cc | p. 67 |
| Turntable bearing mounting bolts torque | 384-434 ft-lb | p. 75 |
| Track shoe bolts torque | 362-434 ft-lb | p. 75 |
Link-Belt LS-2800CII Common Problems This Manual Covers
Link-Belt LS-2800 engine overheating with the water temperature gauge reading high during operation
Check the overheating and water temperature gauge entries in the engine troubleshooting chart on page 90. With the engine cold, verify coolant level and walk around the machine looking for oil and water leakage. If the coolant has been in service a long time, replace it following the irregular maintenance coolant replacement procedure.
Manual Section: Engine and its auxiliary parts p. 90BATT lamp flickering or charging lamp coming on
Check the BATT lamp and charging lamp entries in the engine troubleshooting chart on page 90: a flickering BATT lamp points to insufficient battery charging, low battery fluid or a failed battery, while a charging lamp that comes on points to the alternator. Then trace the charging circuit, starter switch and relays on the wiring diagram on page 23.
Manual Section: Engine and its auxiliary parts p. 90Engine oil lamp coming on with the engine running after a normal startup and warm up
Check the oil lamp entry on page 90 before you run the machine any further. Park on level ground, shut down, and verify the engine oil level. Confirm the last oil change falls within the 250 hour replacement interval listed on page 74, and check under the engine for oil leakage.
Manual Section: Engine and its auxiliary parts p. 90Engine exhaust color turning abnormal and abnormal engine noise while digging under load
Check the exhaust color and abnormal noise entries in the engine troubleshooting chart on page 90. Inspect and clean the air cleaner following the irregular maintenance procedure. During the daily check, verify the fuel level and engine oil level. If the engine noise has no clear cause, stop digging, shut down and inspect before you run it again.
Manual Section: Engine and its auxiliary parts p. 90Swing speed slow and excavating force weak during digging and loading cycles
Check the swinging, swing speed and excavating entries in the main body troubleshooting chart on page 91. Verify the hydraulic oil level in the sump tank and look for oil leakage at hoses and cylinders. Before you suspect the relief valve settings, confirm the hydraulic oil was replaced within the 2000 hour interval on page 76.
Manual Section: Main body p. 91Track comes off or shows abnormal wear at the drive sprocket
Check the track entries in the main body troubleshooting chart on page 91, which point to the pressure in the hydraulic cylinder that sets track tension. Measure and adjust track tension following the irregular maintenance procedure. Inspect the upper and lower rollers for oil leakage. Page 67 lists the oil capacity as 100-110cc for an upper roller and 190cc for a lower roller.
Manual Section: Main body p. 91Frequently Asked Questions
How can I fix a Link-Belt LS-2800 throttle that has stopped working?
If the throttle speed dial malfunctions, you can use the Manual Throttle switch. First, place the Redundant (Backup) switch at the ON position. Then, move the Manual Throttle switch toward the H side to increase engine rpm or toward the L side to reduce it. p. 38
What are the replacement specifications for the hydraulic return and pilot filters on the Link-Belt LS-2800CII?
The pilot oil filter element should be replaced every 500 hours. The hydraulic oil return filter element is also replaced every 500 hours. p. 92
What are the replacement specifications for engine oil, fuel, and air filters on the Link-Belt LS-2800CII?
The engine oil filter (full flow and bypass) should be replaced every 250 hours. The fuel filter is replaced every 500 hours, and the air cleaner element is replaced every 1000 hours. p. 92
What is the correct torque for the turntable bearing mounting bolts on the Link-Belt LS-2800CII?
The turntable bearing mounting bolts (size M20) must be tightened to a torque of 384–434 ft-lb (53.1–60.0 kg-m). p. 75
How do I bleed the hydraulic pressure from the system?
To bleed hydraulic pressure, rest the attachment on the ground, stop the engine, and turn the starter key and control switch to the ON position. Move both operation levers back and forth and to the left and right several times, then turn the starter key to the OFF position. p. 63
Do I get instant access to this Link-Belt LS-2800 Operator Manual?
Instant PDF download. You get the full 112-page searchable Operator Manual immediately after payment. Open it on your laptop, tablet, or phone right in the shop.
Is printing allowed for this Link-Belt LS-2800 Operator Manual?
Yes. Many mechanics print the section they need for their own shop and bring it to the bench.
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