Instruction Manual for F1300/1600 Mud Pump
25
Do not heat the bearings with a torch unless it is the only possible means available. When it is
necessary to use a torch, it should be used only by an experienced welder or mechanic. Hold the torch
at least 150mm (6 inches) away from the bearing and keep the torch moving at all times. Use a
Tempilstick.
DO NOT OVERHEAT THE BEARING
. Overheating draws the temper of the metal and
softens bearing.
Once the heated bearing is in place on the shaft, hold it in place until it cools naturally.
NEVER USE
WATER OR ANY OTHER LIQUID TO COOL A HOT BEARING
. Rapid cooling will cause the
surfaces of the races and rollers to “check” or crack and the bearing will fail immediately.
Never strike a roller bearing with a steel hammer. If the bearing must be driven into position, use
wood or a soft hammer and strike lightly.
Always coat the shaft or housing with grease before installing the bearing. Clean white lead, that is an
anti-seize compound, is the best lubricant for this purpose.
Do not remove a new bearing from the box or wrapping until it is to be installed. Protect it from dirt
and other foreign matter at all times. Clean anti-corrosion grease for packing before assembly. If a
bearing must be cleaned, use clean kerosene or other solvent.
3.3 Pinion Shaft Assembly
Fig.17
(1) Washer (2) Cover washer (3) Bearing sleeve (4) Cover (5) Wear-resisting sleeve (6) Bolt
Table 2 (mm)
Description
Inner Race to shaft journal
Outer Race to Bore
Bearing sleeve to frame Bore
Position A
B
C
Data mm
T0.050
～
T0.109 T0.115
～
L0.018 L0.203
～
L0.076
Note: T-shrink range L-Clearance range
Since the pinion is an integral part of the shaft, only install the bearings and oil seal anti-wear sleeve
to complete the assembly (See Fig.17).
The running clearances of the bearings are predetermined by their precision fit to the shaft and the
bearing carrier. When performing maintenance or overhaul, make sure the fits show in Table 2 is
obtained.
