Gravely 950001, Maintenance Manual

Page: 34 / 66

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Torqmotor Exploded Assembly
Disassembly And Inspection
(Reference exploded view)
1. Place the Torqmotor in a soft jawed vice, with the
coupling shaft (12) pointing down and the vice jaws
clamping firmly on the sides of the housing (18)
mounting flange or port bosses. Remove manifold
port O-rings (18A) if applicable.
2. Scribe an alignment mark down and across the
Torqmotor components from end cover (2) to
housing (18) to facilitate reassembly orientation
where required.
3. Remove the seven (7) special ring head bolts (1)
using a 1/2-inch socket. Inspect bolts for damaged
threads, or sealing rings, under the bolt head.
Replace the damaged bolts.
4. Remove end cover assembly (2) and seal ring (4).
5. If end cover (2) is equipped with shuttle valve
components, remove the two plugs.
6. Thoroughly wash end cover (2) in proper solvent
and blow dry. Be sure the end cover valve
apertures, including the internal orifice plug, are
free of contamination. Inspect end cover for cracks
and the bolt head recesses for good bolt head
sealing surfaces. Replace as necessary.
NOTE: A polished pattern (not scratches) on the cover
from rotation of the commutator (5) is normal.
Discoloration would indicate excess fluid temperature,
8 MATCHED SET
Item Description Item Description Item Description
1 Special Bolts 8 Rotor Set 15 Thrust Bearing
2 End Cover 9 Wear Plate 16 Seal
3 Seal Ring-Commutator 10 Drive 17 Backup Washer
4 Seal Ring 11 Thrust Bearing 18 Housing
5 Commutator 12 Coupling Shaft 18A O-Ring
6 Commutator Ring 13 Bearing/Bushing, Outer 19 Bearing/Bushing, Outer
7 Manifold 14 Thrust Washer 20 Dirt and Water Seal