920K (B98) Maintenance Guide: Follow Hourly Schedules to Avoid Mistakes

Stable operation of engineering equipment relies entirely on precise maintenance routines. Below is a curated guide to the core maintenance intervals for the 920K (B98) model—from the initial 500 hours to 12,000 hours. Even beginners can follow these steps with ease!

🕒 Initial 500 Hours: Basic Oil Change + Seal Adaptation

1.Transfer Drive: Replace with TDTO oil (3.2L/0.85gal). Matching seals and plugs:

• • Drain Plug: 385-3599 (seal included)

  • Fill Plug: 499-2184 (seal included)

  • Level Check Plug: 464-9487

  • Matching O-Ring: 6V-3922

2.Front/Rear Differential + Final Drive:

• • Total Oil Capacity: 17L (4.49gal)

  • Front Differential: 2 pcs of 490-7805 (seal included)

  • Rear Differential: 1 pc of 490-7805 (seal included)

  • Front/Rear Final Drive (each): 1 pc of 490-7805 (seal included) + 1 pc of 122-7776 O-Ring

🕒 Every 500 Hours: Routine Maintenance – Full Filter + Grease Replacement

• Lubrication System: Refill with 452-6006 base application grease

• Engine: Replace 8.8L (2.32gal) of engine oil + oil filter 7W-2326

• Full Filter Replacement:

Fuel Filters: Main Filter 1R-1804 + Secondary Filter 441-511

Air/Hydraulic Filters: Main Air Filter 528-0585 + Hydraulic Filter 421-5479

Cab Air Filters: Fresh Air Filter 270-9018 + Recirculation Filter 313-2458

🕒 1000–12,000 Hours: Advanced Maintenance – Execute by Intervals

1000 Hours: Repeat the oil change, plug, and seal replacement operations from the initial 500 hours.

1500 Hours: Replace engine crankcase air filter, including Breather Element (273-5711) and Secondary Element (346-6688).

2000 Hours: Hydraulic system major maintenance:

• Replace 98L (25.89gal) of hydraulic oil

• Simultaneously replace: Standard Drain Plug (286-1016), Eco Drain (101-4639), Drain O-Ring (2M-8780), and 2 pcs of Filter O-Rings (8C-3082/4F-4097)

• Replace hydraulic tank Breather (258-2829)

3000/6000/12,000 Hours:

• 3000 Hours: Replace Thermostat (254-2267) + matching O-Ring (254-2270), Drive Belt (171-2321), and A/C Compressor (382-8827)

• 6000 Hours: Add 0.4L (0.11gal) of Engine Coolant Extender (depending on S.O.S℠ coolant sampling results)

• 12,000 Hours: Replace 21.5L (5.55gal) of coolant

Following this maintenance schedule will maximize the service life and operational stability of your 920K model!