Suzuki DF 25 Service Manual page 242

10-18 LOWER UNIT
CHECKING PROPELLER SHAFT THRUST PLAY
See the "GEARS - SHIMMING AND ADJUSTMENT / CHECK-
ING PROPELLER SHAFT THRUST PLAY" section on page 10-
27.
LEAKAGE CHECK
Check for leakage of oil seal and O-ring when applying speci-
fied pressure inside of the gearcase.
09950-69511 : Oil leakage tester
: Air Pump
Procedure
1. Temporarily fasten the driveshaft bearing housing to gearcase
using two bolts and nuts (placed through the two diagonally
opposite gearcase mounting holes).
2. Install the test tool into the oil level hole.
3. Connect the air pump to the tester.
4. Rotate driveshaft and propeller shaft clockwise several times
and then apply specified pressure for the test.
NOTE:
Apply low initial pressure of 20 – 40 kpa, (0.2 – 0.4 kg/cm
– 5.7 psi) first, then apply specified pressure.
Leakage test pressure : 100 kPa (1.0 kg/cm
Do not exceed pressure of 110 kPa (1.1kg/cm
or damage to oil seals will result.
5. Once stabilized, pressure should remain steady for at least
5 min..
If pressure does not fall, sealing performance is correct.
2 , 2.8
2 , 14.2 psi)
2
, 15.6 psi)