Maintenance

Change Hydraulic System Filter

Service Interval: After the first 250 hours

Every 500 hours/Yearly (whichever comes first) thereafter

(Every 250 hours/Yearly if using Mobil 1 15W50)

Note: Use only Exmark Part No. 109-4180 for Summer use above 32°F (0°C) or P/N 1-523541 for Winter use below 32°F (0°C) (Refer to Transmission section in Specifications for filter specifications).

1.Stop engine, wait for all moving parts to stop, and remove key. Engage parking brake.

2.Carefully clean area around filter. It is important that no dirt or contamination enter hydraulic system.

3.Unscrew filter to remove and allow oil to drain from reservoir.

Important: Before reinstalling new filter, fill it with Exmark Premium Hydro oil and apply a thin coat of oil on the surface of the rubber seal.

Turn filter clockwise until rubber seal contacts the filter adapter, then tighten the filter an additional 2/3 to 3/4 turn.

4.Fill reservoir as stated in Check Hydraulic Oil

Level.

Exmark Premium Hydro Oil is recommended. Refer to the chart for an acceptable alternative:

Hydro Oil

Change Interval

Exmark Premium Hydro

500 Hours

Oil (Preferred)

 

Mobil 1 15W50

250 Hours

5.Loosen filter 1/2 turn and allow a small amount of oil to leak from the oil filter (this allows air to be purged from the oil filter and supply hose from the hydraulic reservoir). Turn filter clockwise until rubber seal contacts the filter adapter. Then tighten the filter an additional 2/3 to 3/4 turn.

6.Raise the rear of machine up and support with jack stands (or equivalent support) just high enough to allow drive wheels to turn freely.

7.If either drive wheel does not rotate, one or both of the charge pumps (located on the top of the

main pump as shown in Figure 13) may have lost their “prime”. Refer to Hydraulic System Air Purge section.

Note: Do Not change hydraulic system oil (except for what can be drained when changing filter), unless it is felt the oil has been contaminated or been extremely hot.

Changing oil unnecessarily could damage hydraulic system by introducing contaminates into the system.

Hydraulic System Air Purge

Service Interval: As required

Air must be purged from the hydraulic system when any hydraulic components, including oil filter, are removed or any of the hydraulic lines are disconnected.

The critical area for purging air from the hydraulic system is between the oil reservoir and each charge pump located on the top of each variable displacement pump (Figure 13). Air in other parts of the hydraulic system will be purged through normal operation once the charge pump is “primed”.

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Exmark TT20KCE, TT23KAE manual Change Hydraulic System Filter, Hydraulic System Air Purge
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TT23KAE, TT20KCE specifications

Exmark, a leading manufacturer in commercial mowers and outdoor power equipment, has introduced robust models such as the TT23KAE and TT20KCE. Designed with professional landscapers in mind, these mowers are engineered to deliver exceptional performance, durability, and ease of use.

The Exmark TT23KAE is powered by a 23-horsepower Kohler engine, providing the muscle necessary for tackling even the toughest mowing jobs. This model features a 52-inch mowing deck, ensuring a wide cutting path and increased productivity. The innovative Triton™ mower deck technology allows for superior grass cutting performance. It’s designed for optimum airflow, which enhances the quality of cut and grass dispersal. The adjustable cutting heights offer versatility, allowing users to customize the mowing experience according to their specific needs.

On the other hand, the Exmark TT20KCE offers a slightly smaller yet equally efficient option, powered by a 20-horsepower Kohler engine. This model has a 48-inch mowing deck, making it an excellent choice for tighter spaces while maintaining a high level of efficiency. Like its counterpart, the TT20KCE features the Triton mower deck technology, ensuring clean cuts and excellent grass management.

Both models utilize Exmark’s patented, heavy-duty frame and durable construction, ensuring longevity even in the most demanding conditions. They come equipped with a user-friendly control system, allowing for precise maneuverability and ease of operation. The ergonomic design of the operator’s platform reduces fatigue during extended use, making these mowers comfortable for daily handling.

Incorporating advanced technology, both models boast a safety system that prevents accidental starts, enhancing user safety. Additionally, the intuitive design of the maintenance points simplifies routine checks and service, allowing operators to spend more time mowing and less time on upkeep.

Furthermore, both mowers offer impressive fuel economy, reducing operational costs for landscaping businesses. Their compact design allows for easy transport and storage, making them ideal for a range of job sites.

The Exmark TT23KAE and TT20KCE have carved out their niche in the commercial mowing sector by blending power, technology, and user-friendly design. Whether tackling large lawns or navigating tight residential spaces, these mowers deliver unmatched performance and reliability, making them essential tools for landscape professionals.
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