H3-S27
L2800, L3400, WSM
TRANSMISSION (HST TYPE)
(3) HST
Charge Pump
1. Check the charge pump housing and the rotor (1), (2) for
scratches and wear.
2. If scratch or worn, replace the charge pump complete assembly.
W10279260
Valve Plate
1. Check the engagement of the valve plate (2), (3) and the anchor
pin (1).
2. Pushing the valve plate against the anchor pin, lift it to remove.
3. Check the valve plate for foreign particles.
4. Clean the valve plate and dry with compressed air.
5. Check the valve plate for scratches, wear and erosion. (Run a
finger nail across the valve plate surface. If worn, it will be felt.)
6. If worn or scored, replace.
• After checking, coat them with transmission oil.
• Valve plates are not interchangeable.
W10580610
Oil Seals and Bearing for Shaft
1. Remove the internal snap ring and check the oil seals (2) for
damage.
2. Check the bearings (1) for wear.
3. If the bearings are worn, replace.
• After checking, coat the bearing with transmission oil and
the oil seal lip with grease.
W10582810
Cylinder Block Face
1. Check the polished face (1) of cylinder block for scoring.
2. If scored, replace cylinder block assembly.
3. Check the spring (2) for breakage.
4. If broken, replace cylinder block assembly.
W10584790
(1) Inner Rotor
(2) Outer Rotor
(3) Pump cover
(1) Anchor Pin
(2) Valve Plate (Pump)
(3) Valve Plate (Motor)
(1) Needle Bearing (2) Oil Seal
(1) Polished Face (2) Spring
Tractor Manuals Scotland - Please Do Not Copy
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