Cub Cadet 8404 - Manual (Page 82)

CHAPTER 2 8354/8404
2-60 D615-W02 May-2003
615W2C6A
615W2C5A
D. LUBRICATING SYSTEM
a . Checking
(A) Engine oil pressure
1. Remove the oil pressure switch and install adap-
tors and pressure tester.
2. Start the engine and run it until it is warmed up, and
measure the oil pressure both at idling and rated
speed.
3. If the oil pressure is less than the allowable limit,
check the amount of oil, oil filter, oil pump relief
valve, oil passages and oil clearance.
Engine
oil pres-
sure
Factory
spec.
Factory
spec.
Allowable
limit
more than 49 kPa
0.5 kgf/cm²
7.11 psi
294 ~ 441 kPa
2.5 ~ 4.5 kgf/cm²
35.6 ~ 64.0 psi
245 kPa
2.5 kgf/cm²
35.6 psi
At idle
speed
At rated
speed
(Reference)
Tightening
torque Oil
pressure
switch
14.7 ~ 19.6 N·m
1.5 ~ 2.0 kgf·m
10.8 ~ 14.5 lbf·ft
(B) Oil filter and relief valve
1. Drain the engine oil and remove the oil filter to check it.
2. Check the relief valve for dirt, and the seat (2) and
ball (1) for damage.
3. If damaged, replace.
4. Check the free length of spring (3).
5. If it is less than the allowable limit, replace it.
Spring free
length Factory
spec
Allowable
limit
35 mm
1.38 in.
30 mm
1.18 in.
Tightening
torque Relief
cover
32.4 ~ 36.3 N·m
3.3 ~ 3.7 kgf·m
23.9 ~ 36.8 lbf·ft
(1) Relief Valve Ball (3) Relief Valve Spring
(2) Relief Valve Seat
NOTE:
• Install the relief valve cover with the mark up.