advertisement
Maintenance
Servicing the Inlet Valve - Hi-Boy
1.
Relieve Pressure , page 10. Disconnect power from unit.
2. Un-thread and remove suction nut from the fluid pump body (8).
3. Remove suction seat assembly (12).
4. Clean all parts and inspect them for wear or damage, replacing parts as needed.
5. Clean inside of the fluid pump body (8).
6. Reassemble lower suction valve assembly by placing the suction seat assembly (12) in the suction nut
(13) and screw onto fluid pump body (8).
Stand Model
159
160
157
158 ti16056b
8
9
10
11
12
13
Servicing the Inlet Valve - Stand
1.
Relieve Pressure , page 10. Disconnect power from unit.
2. Un-thread and remove suction nut from the fluid pump body (8).
3. Remove O-ring (158), suction seat assembly (157),
O-ring (159) and backup ring (160).
4. Clean all parts and inside fluid body (8).
5. Reassemble inlet valve with O-ring (159), backup ring (160) and O-ring (158).
6. Tighten suction nut using packing adjustment tool
(865008).
Packing Replacement
Procedures
Disassembly of the Fluid Pump
1.
Disconnect the Fluid Pump , page 14.
2. Unscrew and remove the packing nut, with wet cup cap.
3. Push the piston rod down through the packings and out of the pump.
4. Push the packing removal tool up through the pump and remove from the top, bringing packings, spacer and springs along with it, leaving fluid body empty.
Make sure all old packings and glands have been removed from fluid pump.
5. Clean inside of fluid body.
6. Disassemble all parts and clean for reassembly.
Discard any old packings.
7. Lubricate leather packing in lightweight oil for 10 minutes prior to reassembly.
Reassembly of the Fluid Pump
1. Place lower male gland (1) down on the flat side.
2. Take three of the lower polyethylene packings (2) and two of the leather packings (23) and place onto the male gland (1), with the inverted side down, in the following order:
• Polyethylene
• Leather
• Polyethylene
• Leather
• Polyethylene
3. Take the female adaptor (3), which is inverted on both sides, and place it on top of your assembled lower packings.
4. Follow step 2 with your packings inverted side up.
5. Take the second lower male gland (1) and place it on top of your assembled packings with rounded side down.
6. Take assembled glands and packings (13 pieces) and slide onto the lower half of the piston (14).
7. Take the spacer (15) and slide over the top of the piston (14).
16 332882A
Maintenance
8. Take three spring washers (16) and slide over the top of the piston (14) in the following order:
• First spring - curve facing up
• Second spring - curve facing down
• Third spring - curve facing up
9. Take the upper male gland (17) and place it rounded side up.
10. Take three upper polyethylene packings (18) and two leather packings (22) and assemble with inverted side down, on to the male gland (17) in the following order:
• Polyethylene
• Leather
• Polyethylene
• Leather
• Polyethylene
11. Take upper female gland (19) and place on top of assembled upper packings with the inverted side down.
12. Take assembled upper glands and packings (7 pieces) and slide on over the top of the piston (14), making sure inverted sides are down.
13. Take the packing holder (20) and replace the white
O-ring (24) and the black O-ring (25) with new ones from the packing kit.
14. Slide the packing holder (20) over the top fo the upper packings so they fit inside.
15. Lubricate inside of the fluid pump body (4) and the outside of the packings with a light weight oil.
16. Slide assembly into fluid pump body.
NOTE: To keep packings secured in correct position, hold the pump body upside down and push the completed assembly upwards into the pump body. Once placed inside, tilt pump body back up to keep all pieces in.
17. Tighten packing nut (21) onto the top of the fluid pump body and tighten until you feel slight resistance against the Belleville Springs (16). Using the
Packing Adjustment Tool, tighten another 3/4 of a turn.
18.
Reinstall Fluid Pump , page 15.
26
21
20
25
24
19
17
15
14
13
11
12
10
5
6
7
8
9
1
3
1
4
Stand model ti16115b
159
160
157
158
332882A 17
advertisement