Danfoss Series 40 M46 Service Manual

3. Operate pump at full range of controls to ensure proper machine operation.
Bypass valve
P106 653E
1002
1003
1001
5/8 in
20 Nm [15 ft•lb]
Manual displacement control
Removal
1. Using a 3/8 in. hex wrench, remove screw (1210). Remove manual control spool assembly from pump
housing.
2. Using a 1/2 in. hex wrench, remove lock nut (1213). Remove lock washer (1235), handle (1215),
neutral return bracket (1216), and spring (1214) from spool (1207).
Mark the location of neutral return bracket (1216) before disassembly.
3. Remove and discard backup ring (1209) and O-ring (303) from spool.
4. Remove sleeve (1402). Remove and discard backup ring (1208) and O-ring (302).
Inspection
Inspect all parts of control assembly. Replace any damaged parts. Inspect spool and sleeve for
grooves, scratches, and other damage. If spools are damaged, replace them. Inspect sleeve bore in
housing for damage.
Reassembly
1. Lubricate and install O-ring (302) and backup ring (1208) onto sleeve (1402). Lubricate and install
sleeve (1402) into motor housing.
When installing sleeve (1402), ensure that sleeve groove engages spring pin on swashplate.
2. Lubricate and install O-ring (303) and backup ring (1209) onto spool (1207).
Install control spool (1207) with alignment slot facing servo piston.
Service Manual
Series 40 M46 Variable Pumps
Minor repair
36 |
©
Danfoss | September 2017 11026743 | AX00000027en-US0202

Danfoss Series 40 M46 Specifications

General

Brand	Danfoss
Model	Series 40 M46
Category	Water Pump
Language	English