Pressure Transducer
NOTE: See Fig. 14 and 15 for this procedure.
NOTE: The pressure transducer (67) cannot be re- paired or adjusted. If it malfunctions, replace it.
Removal
1.
Relieve pressure; page 3.
2.Remove displacement pump (18). See page 11.
3.Remove front cover (11). Remove screws (25, 26). Lower heat sink (22).
4.Disconnect harness connector from motor control board (22a). Remove grommet (65).
5.Remove retaining ring (66). Pull pressure trans- ducer down and out past drive housing (2).
6.Guide harness (A) through motor and drive hous- ing and remove pressure transducer.
7.Inspect spacer (68) and seal (69) for damage. Replace seal (69) only if it is cut, nicked, or if leakage occurred. See page 16.
Installation
3.Guide harness up through leg and notch of drive housing (2). Secure guide wire over connector.
4.While pulling guide wire out through bottom of motor, guide harness through drive housing and motor castings.
5.Place grommet (65) over harness and push into position in drive housing hole.
6.Feed excess harness cable through grommet and fully seat transducer body into hole in drive housing leg. Secure it with retaining ring (66).
7.Attach connector to motor control board (22a). Replace cover (11) and heat sink (22). Ensure no wires are pinched between components.
65
A
66
67
68
69
1.Using a small piece of solid copper or mild steel wire (approximately 12 in.), form a small hook and place it in the passage of bottom of the motor. Guide it up and out the hole in the drive housing.
2.Pass a spacer (68) over harness connector (A) and down into position at bottom of transducer (67).
Fig. 15
02996A
Pressure Transducer Seal
NOTE: PTFE seal is unaffected by most solvents and materials. Replace seal only when leakage occurs.
Removal
1.
Relieve pressure; page 3.
2.Remove displacement pump (18). See page 11.
3.Remove seal (69) from recess in manifold (229).
4.Clean manifold recess with solvent and cloth or cotton swabs. Inspect for nicks or scratches.
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