Volvo EC18C Hydraulic Repair Kit – How to Use?

Volvo EC18C Compact Excavator Repair Service Manual

✅ Table of Content – EC18C Service Information

✅ GENERAL

✅ Description, complete machine
 ✅ General
✅ Specifications
✅ Standard time
✅ Tool
✅ Miscellaneous
✅ Service instruction; safety instruction
✅ Standard parts, service
✅ Lubricant; fuel; other fluid

✅ SERVICE

✅ General, common info about 171–179
✅ Warranty service
✅ Maintenance
 ✅ Maintenance, base
✅ Condition test
✅ Emergency measures
 ✅ Measures prior to towing
 ✅ Jump starting
✅ Safety equipment, without own function group

✅ ENGINE WITH MOUNTING AND EQUIPMENT

✅ General, engine installation and its function

✅ ENGINE

✅ General, common info about 211–218
✅ Cylinder head
✅ Cylinder block with crankcase ventilation
✅ Cylinder liner; piston
✅ Valve mechanism
✅ Engine transmission; camshaft
✅ Crank shaft; connecting rod; vibration damper; fly wheel

✅ LUBRICATING SYSTEM

✅ General, common info about 221–224
✅ Oil pump; line

✅ FUEL SYSTEM

✅ General, common info about 233–238
✅ Fuel pump; filter; strainer
✅ Fuel tank; fuel filling pump
✅ Injection pump; regulator; pump companion
✅ Injector; delivery pipe

✅ INLET SYSTEM; EXHAUST SYSTEM

✅ Silencer; exhaust pipe
✅ Air cleaner with connections; air pre-heater

✅ COOLING SYSTEM

✅ General, common info about 261–269
✅ Radiator, mounting and connections included
✅ Coolant pump; thermostat
✅ Fan; fan shroud; fan coupling

✅ ENGINE CONTROL

✅ Revs control, hand operated
✅ Stop control

✅ ELEC. SYSTEM; WARNING SYSTEM; INFORMATION SYSTEM; INSTRUMENTS

✅ Comprehensive info, electrical system
✅ Faulttracing

✅ BATTERY; ENERGY STORAGE SYSTEM; MOUNTING PARTS

✅ Battery

✅ ALTERNATOR; CHARGING; ELECTRIC MOTOR; ELECTRIC DRIVES

✅ Alternator inclusive drive

✅ STARTING SYSTEM

✅ Starter motor inclusive solenoid
✅ Electric air pre-heater, excluding element

✅ LIGHTING

✅ General, common info about 351–356
✅ Lighting, front, including parking light and day running light

✅ OTHER ELECTRICAL EQUIPMENT

✅ Audible warning from horn; mounting
✅ Cleaner
✅ Automatic control/blocking function, lacking a function group of its own
✅ Electronic standard components

✅ CABLE; FUSE; RELAY

✅ General, common info about 371–379
✅ Cable; battery disconnector
✅ Cable system, cabin
✅ Battery cable, battery disconnector
✅ Starter cables
✅ Electrical distribution box; fuse box; junction box
✅ Fuse
✅ Miscellaneous

✅ POWER TRANSMISSION

✅ General, common info about 410–436

✅ HYDROSTATIC DRIVE

✅ Hydraulic motor incl. operating system
✅ Hydraulic motor 1, traveling
✅ Hydraulic motor, swing of superstructure
✅ Centre passage; lines
✅ Swing system upper part

✅ FRAME; SPRINGS; DAMPING; AXLE SUSPENSION; WHEEL/TRACK UNIT

✅ Comprehensive info about frame and track unit/wheels

✅ FRAME

✅ Counterweight
✅ Frame, excavator
✅ Undercarriage (crawler machine)
✅ Revolving frame

✅ WHEELS; TRACKS; TYRE; HUB; DRUM

✅ Crawler unit
✅ Front idler, incl. fork
✅ Sprocket
✅ Rubber track
✅ Top rollers; skid rails
✅ Bottom rollers

✅ MACHINERY HOUSE; CAB; EXTERIOR TRIM PARTS ANYWHERE

✅ CAB, NAKED; CANOPY

✅ Engine hood; mudguard; foot step
 ✅ Engine hood with assembly parts

✅ CAB INTERIOR/UPHOLSTERY

✅ Driver’s seat, complete; instructor’s seat

✅ HYDRAULIC SYSTEM; DIGGING / HANDLING / GRADING EQUIPMENT; MISC. EQUIPMENT

✅ WORKING HYDRAULICS; SERVO HYDRAULICS

✅ General, common info about 911–917
✅ Tank; line; oil cooling; filter; breather; filling pump
✅ Working hydraulics
✅ Pump, working hydraulics
✅ Servo hydraulic system
✅ Lever; pedal

✅ UNIT, DIGGING

✅ General, common info about 971–975
✅ Boom with links
✅ Dipper arm with links

What Kind of Hydraulic Fluid Does a Volvo EC18C Excavator Take? ✅
The Volvo EC18C uses ISO VG 46 hydraulic oil or Volvo Hydraulic Fluid 98608, designed to perform under extreme pressure and varying temperatures. Using the correct hydraulic oil is essential to protect the hydraulic pumps, seals, and cylinders from wear and damage. Always check the operator’s manual or the service manual to confirm compatibility and fill levels before replacing or topping up the fluid. Clean fluid and proper viscosity ensure smooth hydraulic performance and a longer lifespan for your excavator.