Instruction Manual for F1300/1600 Mud Pump
28
should not be intermixed.
4
)
Install the inner race of the crosshead bearing on the crosshead pin and mark respective items (like
1,2,3 or left/mid/right) according to their positions. Remove all nicks and burrs before shrinking race
into place. Refer to bearing fit Position H Table 3.
5) Install inner race of the center eccentric bearing on the shaft. Slide center strap into position and
install inner race clamp (5). Tighten socket head screws (8A) in clamp with the torque 60
~
90 N.m
(44
~
66ft .lbs).
6) Install retainer ring (7) in the groove on RH eccentric and shrink inner race of eccentric bearing on
shaft. After installing the connecting rod into position, install inner bearing retainer (14).Tighten inner
race retainer bolts (8) with the torque 60
~
90 N.m (44
~
66ft .lbs).
7) Install the LH eccentric bearing and connecting rod etc.(refer to item 6) above).
8) Place main bearings (9) in the main bearing sleeve (10 RH and 11 LH) and install outer race
retainer (12). Tighten bolts (15) with the torque 60
~
90 N.m (44
~
66ft .lbs):
9) After installing the two main bearing retainer rings (16), shrink main bearings (9) on each end of
the shaft. Install inner race retainers (17) and bolts (18) .Tighten bolts with the torque: 60
~
90 N.m
(44
~
66ft .lbs)
3.5 Installing Crankshaft Assembly in the Frame
In order to obtain a more precise fit between the main bearing housing and the frame bore on
F-Series pumps, the installation procedures outlined below are to be followed (Refer to Fig. 19)
1) Place a piece of wood between small end of connecting rod and crosshead guide (as shown in Fig.
20) to protect guide from scoring or gouging as the connecting rod are sliding into position.
2) Rotate the main bearing sleeve so that the two flat spots (at 180° position) are parallel with the
main bearing bolt holes, and slowly lower the crankshaft into position. (The two flat spots provide
clearance for the main bearing bolts.)
3) After placing crankshaft in the frame, and before installing the main bearing covers, check the
rollers in the main bearings to assure that each row of rollers in each bearing is equally loaded. The
exact method to check is: drive each row roller by hands, there should be 4-6 rollers seized because
of the gravity, while it is not allowed that some row can be driven by hands. The two sides of floating
bearing outer race should have roughly equivalent axial clearance. Check out and then install main
bearing covers.
Fig.19
(1) Washer (2) Bearing cover (3) Wire (4) Main bearing bolt