
PUMP REASSEMBLY INSTRUCTIONS
20
4. Press bearing outer race (11) into housing (7).
BARREL AND INNER RACE ASSEMBLY
5.
Thread seven M8-1,25 studs into bearing inner race. Lower barrel (14)
over studs and seat. If the inner race is heated to 150
0
F, 65
0
C, barrel will
slide into position without force. If race is not heated, longer screws (12)
can be used to draw the race and barrel together. Insert screws (12) and
torque to 30 lbs ft., 40 Nm.
See illustration
6.
Apply oil to face of port plate and inner bearing race. Attach tool T-1 to
barrel with two M6 screws. Carefully lower barrel assembly into housing
engaging inner race into rollers of outer bearing race, barrel may then be
lowered until it has seated on port plate.
7.
Insert two "O" rings (27) into each retainer (28). Apply thread locking
compound to two screws (26) and secure retainer to housing. Torque to 84 lbs-in., 9,5 Nm.
8. Apply thread locking compound to two screws (26) and assemble the other retainer on opposite side of housing.
Torque to 84 lbs-in., 9,5 Nm.
9. Assemble the two piston rings (39) on control piston (44). Insert control piston (44) into housing bore that is used
with the control caps.
For CW shaft rotation
, the long end of the piston must be positioned to the right.
(Ref. fig.1
)
For CCW rotation
, the long end of the piston is to the left.
10. Position Belleville washers (18) on barrel,
See illustration.
To insure proper pump opera-
tion and correct barrel holddown force they must be assembled exactly as shown. Place
barrel stop (19) on Belleville washers and center the washers and stop on barrel.
CAM ASSEMBLY
11. Set cam assembly (10) on suitable surface protecting cam surfaces from damage during
assembly.
See illustration
12. Place wear plate (22) on cam.
13. Position pistons-shoes-retainer assembly (17) over center post and against wear plate.
14. Install thrust washer (45) over center post.
15. Six different retainers (46) are available for setting the shoe holddown. Each retainer is
marked:
white dot
.062", 1,57 mm thick,
red dot
.064", 1,63 mm thick,
green dot
.067",
1,70 mm thick,
yellow dot
.069", 1,75 mm thick, and
blue dot
.071", 1,80 mm thick. Install the thickest retainer
with the dot side up,
that will fit in the groove on the center post and allow a clearance of .003"-.005",
0,076-0,127 mm between the shoe and wear plate.
A .003", 0,076 mm feeler gage must go
completely under
any shoe, and a
.005”, 0,127 mm feeler gage must not go
under any
shoe while holding a piston and lifting tightly against the shoe retainer.
The piston and shoe assembly must be free to rotate easily by hand.
Rotate 360o to confirm there is no binding and that each shoe is free in
the retainer plate. Oil the assembly thoroughly.
16. Install slide link (43) on rocker cam pin as shown.
17. Oil barrel bores before installing cam assembly. The piston must be
moved outward
(away from pump center)
so that clearance is provided for
installing the rocker cam assembly. Lower cam assembly into the housing
with the slide link positioned so it will engage into the control piston (44).
The seven pistons (17) must first be engaged into the barrel bores.
Next the slide link (43) must engage into the control piston (44). Continue
lowering rocker cam assembly until it is seated on cam/bearing retain-
ers(28).
18. Apply thread locking compound to two screws (34) and assemble clear-
ance-bearing (24) to cam-bearing retainer (28) using the screws (34), two
washers (25) and two washers (23). Move rocker cam to the right until it
is against stop.
Set clearance
between clearance bearing (24) and cam at
.006", 0,152 mm. Torque screws to 6 lbs-ft., 8,1 Nm maintaining the .006",
0,152 mm clearance.
19.Adjust piston (44) toward the
off stroke
control side (31). This will place the cam at
approximately zero displacement and provide clearance for the shaft installation.
18
19
.005/.003” (,127/,076 mm)
SHOE CLEARANCE
17
46
45
22
10
43
24
www.comoso.com
Содержание P07 C-mod
Страница 12: ...PUMP PARTS LISTS 12 Ref Figure 1 Exploded view of pump with pressure compensator control www comoso com ...
Страница 54: ...PQ HIGH RESPONSE CONTROL 54 PQ CONTROL IN PROCESS OF DEVELOPMENT www comoso com ...
Страница 55: ...PQ HIGH RESPONSE CONTROL 55 PQ CONTROL IN PROCESS OF DEVELOPMENT www comoso com ...
Страница 56: ...PQ HIGH RESPONSE CONTROL 56 PQ CONTROL IN PROCESS OF DEVELOPMENT www comoso com ...
Страница 57: ...PQ HIGH RESPONSE CONTROL 57 PQ CONTROL IN PROCESS OF DEVELOPMENT www comoso com ...
Страница 74: ...74 TEST PROCEDURE PQ CONTROL IN PROCESS OF DEVELOPMENT www comoso com ...