Iseki TK
Power steering fluid capacity & service interval
Iseki TK uses power steering fluid with a capacity range of 1.1 to 35 liters. Service intervals include checking at 10 and 50 hours and changing at 300 hours. The data covers 5 configurations.
The configuration chart below lists fill volumes and service intervals for each engine and trim variant.
| Type | Specifications |
|---|---|
| TK 527 F (1998- ) |
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| TK 532 F (1998- ) |
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| TK 538 F (1998- ) |
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| TK 538 FH (1998- ) |
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Additional Notes
- Across the Iseki TK 527 F, TK 532 F, TK 538 F, and TK 538 FH, the power steering system capacity is 1.1 liter, indicating a dedicated and relatively compact steering circuit separate from other hydraulic functions.
- The TK 546 carries a combined transaxle, hydraulic system, and power steering capacity of 33-35 liters, a figure that reflects a shared fluid reservoir serving multiple drivetrain functions rather than an isolated steering circuit.
- The 33-35 liter range on the TK 546 represents a fill tolerance rather than a fixed volume, which is common in combined hydraulic systems where fluid level is confirmed within a specified band during servicing.
- All five configurations share a 300-hour fluid change interval under normal use conditions, applied uniformly regardless of whether the system is a standalone power steering circuit or a combined transaxle and hydraulic arrangement.
- The TK 527 F carries a 50-hour check interval, which is notably longer than the 10-hour check interval specified for the TK 532 F, TK 538 F, TK 538 FH, and TK 546.
- A 10-hour check interval, as seen on four of the five configurations, corresponds to very frequent inspection in operational terms, since tractor hours accumulate quickly during active field use.
- The check interval and the change interval serve distinct purposes: the check interval addresses fluid level and condition monitoring, while the 300-hour change interval governs full fluid replacement regardless of apparent condition.