Home
Pricing

Pricing

Komatsu Backhoe-Loader WB91-93/M/WEAM002304/WB91R/WB93R-2: Every 2000 Hours of Operation Maintenance

Use this maintenance checklist and follow the schedule interval for the proactive and preventive maintenance of your backhoe loader. This has been proven to lower costs by catching small service issues before they blossom into giant repair headaches.

MaintainX

11/04/2022

Komatsu Backhoe-Loader WB91-93/M/WEAM002304/WB91R/WB93R-2: Every 2000 Hours of Operation Maintenance

Carry out these operations together with those to be performed every 50, 250, 500 and 1000 HOURS.

CHANGING THE HYDRAULIC SYSTEM OIL AND CLEANING THE SUCTION FILTER

CAUTION!

On machines containing synthetic biodegradable hydrau- lic oil type HEES, carry out the change after the first 500 hours of operation and successively every 2000 hours, and in any case at least once a year.

DANGER!

After stopping the engine, with the machine positioned so that maintenance can be performed, release the residual pressures from the work equipment circuits (by operating the controls more than once) and from the tank (by slowly loosening the filling cap).

Let the oil cool down until it reaches 4045°C before carry- ing out any maintenance operation.

Immediately clean any area dirty with oil.

Oils, filters, the coolant and the battery are considered special waste and must be collected and disposed of ac- cording to the anti-pollution regulations in force.

The filter can be reached after removing the platform (1) with the relevant fastening screws (2). Use a 17 mm spanner.

Remove the filling cap (3). (Use a 24 mm spanner).

Remove the drain plug (4) and let the oil flow out, gathering it into a container with suitable capacity. Use a 41 mm spanner.

Remove the upper flange (5), the filter cartridge (6) and the filter casing (7). Use a 13 mm spanner.

Remove the grid filter (8), complete with gasket (9) and clean it with light solvents (petrol, kerosene, diesel oil, etc.).

Put back the filter (8) complete with the gasket (9).

Change the filter cartridge (6) and reassemble the whole unit. (See “4.7.10.c CHANGING THE HYDRAULIC SYSTEM OIL FILTER”).

Put back the drain plug (4) and fill the oil tank with the prescribed oil until reaching the level (10).

Raise the front mat and remove the cover (11). Use a 13 mm spanner.

Loosen the bleeder plug (12) positioned on the hydraulic pump, until no air bubbles can be observed in the oil that flows out (use a 3 mm setscrew spanner). Tighten the bleeder plug (12) and put back the cover (11).

Put back the filling cap (3), start the engine and operate the machine making each piston move several times in order to bleed the system. Stop the machine in maintenance position, check the oil level again and if necessary top up. Always use oil of the prescribed type, (see “4.3 FUEL, COOLANT AND LUBRICANTS”).

Put back the upper platform (1) with the relevant fastening screws (2).

IMPORTANT

The hydraulic oil of the machines equipped with demoli- tion hammer deteriorates more rapidly than the oil of the machines used for simple digging operations. Perform the oil changes according to the indications given in the table beside.

CHANGING THE COOLANT

Soon after the machine has been stopped the coolant is very hot and under pressure and it may cause serious burns; let the engine cool down until it reaches approxi- mately 40÷45°C before changing the coolant.

Slowly loosen the radiator cap, in order to release the re- sidual pressure.

Oils, filters, the coolant and the battery are considered special waste and must be collected and disposed of ac- cording to the anti-pollution regulations in force.

IMPORTANT

The change of the permanent coolant does not require any washing cycle for the descaling of the circuit.

Remove the front guard (1) after removing the relevant fas- tening screws (2). Use a 17 mm hexagon spanner.

Open the engine hood (See “14.1 ENGINE HOOD”).

Loosen and remove the upper cap (3) of the radiator.

Open the radiator drain cock (4) (see Fig. A), loosen the drain valve (5) positioned on the filter carrier head and let the fluid flow out, collecting it in a container with suitable capacity (re- member that the capacity of the cooling system is approxi- mately 14 liters). Use 12 mm spanners.

Close the radiator drain cock (4) (see Fig. B), tighten the valve (5) on the filter carrier head and fill the radiator with new fluid. (See “4.3 FUEL, COOLANT AND LUBRICANTS”).

Start the engine and let it idle for a few minutes; check the level again and top up before putting back the upper cap (2).

Fill the tank (6) until reaching the maximum level.

Close the engine hood.

Put back the front guard (1) with the relevant fastening screws (2). Use a 17 mm hexagon spanner.

CHANGING THE BRAKING SYSTEM OIL

Oil spilled on the floor may cause it to become slippery; immediately clean any dirty area.

Oils, filters, the coolant and the battery are considered special waste and must be collected and disposed of ac- cording to the anti-pollution regulations in force.

Before changing the braking system oil, it is advisable to brake a few times in order to warm up and fluidize the oil and therefore facilitate draining.

The oil change and the bleeding of the braking system must be carried out with the machine positioned on level ground and locked by means of the parking brake.

Drain the oil and wash the system, proceeding as follows:

Apply a small pipe for the collection of the oil to the drain screws (1) and loosen them. Use a 13 mm spanner.
Open the engine hood (See “3.5.1 ENGINE HOOD”) and remove the cap (2) of the tank (3).
Operate the brake pedals (connected with each other) until the oil contained in the tank (3) runs out.
Fill the tank (3) with new oil and keep pumping; fill the tank (3) more than once, until the used oil (about 0.8 l.) has been changed completely; bleed the residual air. (See “4.7.1.d BLEEDING THE BRAKING CIRCUIT”). For details on the oil to be used, see “4.3 FUEL, COOLANT AND LUBRICANTS”.

CHECKING THE ALTERNATOR AND THE STARTER

For any inspection and/or repair, contact your Komatsu Utility Dealer. If the engine is started frequently, have an inspection carried out every 1000 hours of operation.

CHECKING THE QUANTITY OF COOLANT IN THE A/C SYSTEM

The coolant used in the air conditioning system is very dangerous. If it is sprayed into the eyes or in case of contact with the skin, it may cause blindness or frostbite. Furthermore, to avoid any explosion, do not generate sparks and do not use naked flames near the air conditioner.

Oils, filters, coolants and batteries are considered special waste and must be recovered and disposed of according to the antipollution regulations in force.

The maintenance of the air conditioning system must be carried out exclusively by specialized person- nel.

Source: MaintainX (Community Member)

Please note that any procedure, checklist, or other document available in the MaintainX Procedure Hub is provided for general education and information only and does not constitute legal, medical, or financial advice. MaintainX makes the materials available AS IS and AS PROVIDED, without warranties of any kind. By downloading or using any such materials, you assume the risk that they may not be appropriate for your specific situation and agree that you are solely responsible for any such use, including compliance with applicable law and with meeting any conditions of product warranties.

Similar procedures

Bunn ITB Infusion Series Tea Brewer, 120V Dual Dilution W/Sweetener: Daily Cleaning Checklist
MaintainX
12/07/2022
JLG | Scissor Lifts 33RTS - Daily Walk-Around Inspection
MaintainX
10/13/2022
Allied K-Series (7.5 - 12.5 KGA): Annual Maintenance
MaintainX
08/24/2022
Mack | Mack MP8 LEU - Preventive Maintenance Service Check List - Every 4 Months
MaintainX
12/28/2022
Komatsu Bulldozers D65EX,PX-12 : Every 2000 Hours
MaintainX
11/04/2022
Maintenance During Production Work Order
Walkers Food Products Co.
01/13/2023
Daikin Roofpak Heating and Cooling IM 684-7: Semi-Annual Maintenance
MaintainX
08/10/2022
Crown Rider Pallet Trucks PC 4500 Manual Steering: Daily Safety Check
MaintainX
10/05/2022
Yale Forklift ERC100HG (39) Maintenance Procedure: Every 8 Hours or Daily
MaintainX
10/25/2022
Industrial Grade Wall Mount Fans 9075 - Maintenance
MaintainX
08/19/2022
Bunn CWTF-DV-APS Dual Volt Airpot System with (1) Plastic & (1) Stainless Funnel - Cleaning Card: Cleaning Instructions
MaintainX
12/07/2022
Daikin Skyline Semi-Custom Outdoor Air Handler MD5 VFD: Semi-Annual Maintenance
MaintainX
08/10/2022
Small Buildings
WeClean
04/04/2022
Toilet Master Jack
Oklahoma School of Science and Mathemathics
04/24/2023
Fixed Play Annual Inspection Checklist
MaintainX
07/22/2022
Noritz NRC111-DV-NG - Maintenance
MaintainX
08/24/2022
Generic Golf Carts and Utility Vehicles Safety Inspection Checklist
MaintainX
07/22/2022
Skipper Monthly PM
Laminate Technologies-Tiffin, OH
09/18/2023
Hoshizaki Ice Machine KM-340MAH, MWH KM-515MAH, MWH, MRH KM-600MAH KM-650MAH, MWH, MRH KM-901MAH, MWH, MRH/3: Cleaning and Sanitizing Checklist
MaintainX
10/08/2022
JLG Vertical Mast 20VP: Battery Charging and Maintenance
MaintainX
10/12/2022
30070 - Commercial SiteTank & Pump Inspection Checklist - 6-Monthly
MaintainX
04/21/2022
Lennox ELS (6, 7.5, 10, 12.5, 15 & 20 Tons): Maintenance
MaintainX
08/10/2022
JLG Vertical Mast DSPi S: Function Check
MaintainX
10/13/2022
Mack | Mack MP10 TD - Preventive Maintenance Service Check List - Every 4 Months
MaintainX
12/28/2022
Generac Diesel Generators MMG320CAN6: Every 2000 Hours or 24 Months Maintenance (John Deer Engine)
MaintainX
09/02/2022
Hotel Exterior Area Inspection Checklist
MaintainX
07/19/2022
Aircraft Preventive Maintenance Checklist
MaintainX
09/16/2022
BUNN | Single® TF ThermoFresh® DBC® Stainless 120/208V - Daily Cleaning Instructions
MaintainX
12/07/2022
Infection Prevention and Control Best Practices: For Small Animal Veterinary Clinics
MaintainX
07/26/2022
Mack | 2010 Mack CMM Australia Right Hand Drive - At the First Inspection Interval
MaintainX
12/28/2022
Cannabis Cultivation Facility Initial Inspection
MaintainX
07/19/2022
Veterinary Hospital Inspection Checklist
MaintainX
07/26/2022
Mack | 2012 Mack CSM Australia Right Hand Drive - Initial Valve Adjustment Intervals
MaintainX
12/28/2022
Crown Very Narrow-Aisle Reach Trucks TSP 7000: Battery Maintenance
MaintainX
10/05/2022
Crown Rider Pallet Trucks PR 4500: Battery Maintenance
MaintainX
10/05/2022
Daily Health & Safety Walk
Eurostampa UK - H&S and Compliances
07/29/2024
Generac Containerized Generators MCG1000: Every 4000 Hours Maintenance
MaintainX
09/02/2022
30070 | Suva Terminal Padlock Monthly Check
MaintainX
04/21/2022
Generac Diesel Generators MDG100DF4: Annual Maintenance
MaintainX
09/06/2022
Noritz N-0751M-OD-NG - Maintenance
MaintainX
08/24/2022
Zebra Invoice/Panda Printer and Applicator PM Procedure
EssilorLuxottica Maintenance
05/23/2023
Bunn 3Gal (11.4L) Twin Automatic Electric Coffee Urn 120/240V: Cleaning Instructions
MaintainX
12/07/2022
Gym Cleaning Checklist
MaintainX
09/16/2022
Fleet Service Inspection Checklist: 5000 Miles
MaintainX
07/19/2022
Toyota Pallet Trucks 6HBC40 : Scheduled Maintenance Annually or Every 1500 Operating Hours
MaintainX
11/15/2022
Bunn CWT15-APS Airpot System, Plastic Funnel: Cleaning Instructions
MaintainX
12/07/2022
Bulk Diesel Aboveground Tank Inspection Checklist: Monthly
MaintainX
07/22/2022
IVP Bi-Yearly Preventive Maintenance
Pacific Seafood - Woodland
04/28/2024
Komatsu Bulldozers D65E,P-12 : Every 500 Hours
MaintainX
11/04/2022
Daily Vendor Cleaning Check
VASA Fitness - Corporate
08/03/2023

Explore by industry

Manufacturing / Industrial
Property Management
General
Food & Beverage / Retail
Fleet Management
Hospitality
Healthcare

Company
About
Careers
Privacy Policy
Terms of Service

Product
Features
Pricing
Blog

Support
FAQ
API
GDPR

Carry out these operations together with those to be performed every 50, 250, 500 and 1000 HOURS.

CHANGING THE HYDRAULIC SYSTEM OIL AND CLEANING THE SUCTION FILTER

CAUTION!

On machines containing synthetic biodegradable hydrau- lic oil type HEES, carry out the change after the first 500 hours of operation and successively every 2000 hours, and in any case at least once a year.

DANGER!

After stopping the engine, with the machine positioned so that maintenance can be performed, release the residual pressures from the work equipment circuits (by operating the controls more than once) and from the tank (by slowly loosening the filling cap).

Let the oil cool down until it reaches 4045°C before carry- ing out any maintenance operation.

Immediately clean any area dirty with oil.

Oils, filters, the coolant and the battery are considered special waste and must be collected and disposed of ac- cording to the anti-pollution regulations in force.

The filter can be reached after removing the platform (1) with the relevant fastening screws (2). Use a 17 mm spanner.

Remove the filling cap (3). (Use a 24 mm spanner).

Remove the drain plug (4) and let the oil flow out, gathering it into a container with suitable capacity. Use a 41 mm spanner.

Remove the upper flange (5), the filter cartridge (6) and the filter casing (7). Use a 13 mm spanner.

Remove the grid filter (8), complete with gasket (9) and clean it with light solvents (petrol, kerosene, diesel oil, etc.).

Put back the filter (8) complete with the gasket (9).

Change the filter cartridge (6) and reassemble the whole unit. (See “4.7.10.c CHANGING THE HYDRAULIC SYSTEM OIL FILTER”).

Put back the drain plug (4) and fill the oil tank with the prescribed oil until reaching the level (10).

Raise the front mat and remove the cover (11). Use a 13 mm spanner.

Loosen the bleeder plug (12) positioned on the hydraulic pump, until no air bubbles can be observed in the oil that flows out (use a 3 mm setscrew spanner). Tighten the bleeder plug (12) and put back the cover (11).

Put back the upper platform (1) with the relevant fastening screws (2).

IMPORTANT

The hydraulic oil of the machines equipped with demoli- tion hammer deteriorates more rapidly than the oil of the machines used for simple digging operations. Perform the oil changes according to the indications given in the table beside.

CHANGING THE COOLANT

Soon after the machine has been stopped the coolant is very hot and under pressure and it may cause serious burns; let the engine cool down until it reaches approxi- mately 40÷45°C before changing the coolant.

Slowly loosen the radiator cap, in order to release the re- sidual pressure.

Oils, filters, the coolant and the battery are considered special waste and must be collected and disposed of ac- cording to the anti-pollution regulations in force.

IMPORTANT

The change of the permanent coolant does not require any washing cycle for the descaling of the circuit.

Remove the front guard (1) after removing the relevant fas- tening screws (2). Use a 17 mm hexagon spanner.

Open the engine hood (See “14.1 ENGINE HOOD”).

Loosen and remove the upper cap (3) of the radiator.

Open the radiator drain cock (4) (see Fig. A), loosen the drain valve (5) positioned on the filter carrier head and let the fluid flow out, collecting it in a container with suitable capacity (re- member that the capacity of the cooling system is approxi- mately 14 liters). Use 12 mm spanners.

Close the radiator drain cock (4) (see Fig. B), tighten the valve (5) on the filter carrier head and fill the radiator with new fluid. (See “4.3 FUEL, COOLANT AND LUBRICANTS”).

Start the engine and let it idle for a few minutes; check the level again and top up before putting back the upper cap (2).

Fill the tank (6) until reaching the maximum level.

Close the engine hood.

Put back the front guard (1) with the relevant fastening screws (2). Use a 17 mm hexagon spanner.

CHANGING THE BRAKING SYSTEM OIL

Oil spilled on the floor may cause it to become slippery; immediately clean any dirty area.

Oils, filters, the coolant and the battery are considered special waste and must be collected and disposed of ac- cording to the anti-pollution regulations in force.

Before changing the braking system oil, it is advisable to brake a few times in order to warm up and fluidize the oil and therefore facilitate draining.

The oil change and the bleeding of the braking system must be carried out with the machine positioned on level ground and locked by means of the parking brake.

Drain the oil and wash the system, proceeding as follows:

Apply a small pipe for the collection of the oil to the drain screws (1) and loosen them. Use a 13 mm spanner.

Open the engine hood (See “3.5.1 ENGINE HOOD”) and remove the cap (2) of the tank (3).

Operate the brake pedals (connected with each other) until the oil contained in the tank (3) runs out.

Fill the tank (3) with new oil and keep pumping; fill the tank (3) more than once, until the used oil (about 0.8 l.) has been changed completely; bleed the residual air. (See “4.7.1.d BLEEDING THE BRAKING CIRCUIT”). For details on the oil to be used, see “4.3 FUEL, COOLANT AND LUBRICANTS”.

CHECKING THE ALTERNATOR AND THE STARTER

For any inspection and/or repair, contact your Komatsu Utility Dealer. If the engine is started frequently, have an inspection carried out every 1000 hours of operation.

CHECKING THE QUANTITY OF COOLANT IN THE A/C SYSTEM

The coolant used in the air conditioning system is very dangerous. If it is sprayed into the eyes or in case of contact with the skin, it may cause blindness or frostbite. Furthermore, to avoid any explosion, do not generate sparks and do not use naked flames near the air conditioner.

Oils, filters, coolants and batteries are considered special waste and must be recovered and disposed of according to the antipollution regulations in force.

The maintenance of the air conditioning system must be carried out exclusively by specialized person- nel.