Simplicity 1693074 Service And Repair Manual

Figure 39. Install Bypass Valve Control Linkage
A. Capscrew E. Nut
B. Washer F. Lever
C. Spring G. Spacer
D. Washer
11 - 23
11 Transmission Teardown
Hydro-Gear 0500 / 0650
TRANSMISSION RELEASE LEVER
1. Install lever (F, Figure 39) spacer (G), and nut (E).
2. Install the taptite screw (A, Figure 39), washer (B),
spring (C), and washer (D). Torque the mounting
taptite screw (A) to 80-100 in-lbs.
Bench Pressure Test
If you have the necessary equipment the transmission
manufacturer suggests performing the following test:
Prior to adding oil to the transaxle, it is recommended
that you test for leaks. This may be performed with a
small hand pump or by using compressed air and a regu-
lator. Do not allow more than 10 PSI to be applied or
seal damage may occur. To locate a leak, apply a soap
mixture around the housing seam and at all lip seals. Do
not submerge unit or the brake will be damaged.
Fill Transmission Oil
Fill the transaxle with 2-1/2 quarts (80 ounces) of SAE
20W-50 oil.
NOTE: Oil level should be checked from the vent hose
opening with the plastic fitting removed from the case.
Oil level should be 1-3/4" to 2" below the top of the vent
hole threads (see Figure 41).
Install Vent Tube
1. Install the tube fitting (H, Figure 42) in the transmis-
sion casing.
2. Install the vent plug (J) in the tube.
Bench Purging of Transmission
It is recommended that the unit be purged prior to
installing into the vehicle frame. The following is the sug-
gested purging procedures for repaired transaxles.
4. Spin the input shaft in a clockwise direction at 1000-
1500 RPM. This may be performed in a drill press (or
equivalent).
2. Engage (actuate) the bypass valve.
3. Stroke the control lever forward for five seconds and
then reverse for five seconds. Do this three times in
each direction.
4. Return the control lever to neutral.
5. Disengage the bypass.
6. Stroke the control lever forward for five seconds and
then reverse for five seconds. Do this three times in
each direction.
NOTE: It may be necessary to repeat these steps in the
vehicle to fully purge the transaxle.
Check the oil level after fully purging the unit of air. It
should be between 1-3/4” and 2” from the top of the
housing.
Figure 40. Test For Leaks
Figure 41. Check Oil Level
A
B
C
D
E
F
G

Simplicity 1693074 Specifications

General

Brand	Simplicity
Model	1693074
Category	Lawn Mower
Language	English