Komatsu Forklift trucks, electric - Tusk BBX50 series, -6

Brake fluid capacity & service interval

Komatsu Forklift trucks, electric - Tusk BBX50 series, -6 use brake fluid with a capacity of 0,15 liter. Service intervals include checking every 8 hours and changing every 6 months or 1200 hours. The data covers 6 configurations.

The configuration chart below lists fill volumes and service intervals for each engine and trim variant.

TypeSpecifications
400CBSGH-6, BBX (900001A ->)
  • Use: Normal
  • Capacity 0,15 liter
  • Check 8 hours
  • Change 6 months/ 1200 hours
400CBSH-6, BBX (090001A ->)
  • Use: Normal
  • Capacity 0,15 liter
  • Check 8 hours
  • Change 6 months/ 1200 hours
500CBSGH-6, BBX (900001A ->)
  • Use: Normal
  • Capacity 0,15 liter
  • Check 8 hours
  • Change 6 months/ 1200 hours
500CBSH-6, BBX (900001A ->)
  • Use: Normal
  • Capacity 0,15 liter
  • Check 8 hours
  • Change 6 months/ 1200 hours
600CBSH-6, BBX (900001A ->)
  • Use: Normal
  • Capacity 0,15 liter
  • Check 8 hours
  • Change 6 months/ 1200 hours
650CBSH-6, BBX (900001A ->)
  • Use: Normal
  • Capacity 0,15 liter
  • Check 8 hours
  • Change 6 months/ 1200 hours

Additional Notes

  • The hydraulic brake system capacity across all Komatsu Tusk BBX50 series -6 models is 0.15 liter. For a brake fluid reservoir, a figure this small is consistent with a compact hydraulic circuit rather than a large open system, reflecting the contained brake architecture typical of electric forklift trucks.
  • The 8-hour check interval corresponds to a standard operator shift cycle in industrial environments. Scheduling a fluid level inspection at this frequency allows brake system integrity to be confirmed at the start or end of each working shift under normal use conditions.
  • The change interval is defined by whichever threshold arrives first: 6 months or 1,200 hours of operation. Brake fluid is hygroscopic, meaning it absorbs moisture over time regardless of operating hours, which is why a calendar-based limit accompanies the hour-based one.
  • All six model variants in the BBX50 series -6 lineup share identical brake fluid specifications. The 400CBSGH-6, 400CBSH-6, 500CBSGH-6, 500CBSH-6, 600CBSH-6, and 650CBSH-6 all carry the same 0.15-liter capacity and the same check and change intervals, indicating a common hydraulic brake circuit design across the range.
  • The distinction between the "G" variants (400CBSGH-6, 500CBSGH-6) and the non-"G" variants does not produce any difference in brake fluid capacity or service intervals. Both sub-groups are specified identically for the hydraulic brake system.
  • All specifications apply under normal use conditions. No separate severe-duty interval is listed for the hydraulic brake system, meaning the 6-month and 1,200-hour thresholds represent the sole defined service schedule for this fluid across the series.

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