MINOR REPAIR
Minor Repairs may be performed, following the proce-
dures in this section, without voiding the unit warranty.
Cleanliness is a primary means of assuring satisfactory
transmission life, on either new or repaired units.
Cleaning parts by using a clean solvent wash and air
drying is usually adequate. As with any precision equip-
ment, all parts must be kept free of foreign materials and
chemicals.
Protect all exposed sealing surfaces and open cavities
from damage and foreign material.
It is recommended that all O-rings be replaced. Lightly
lubricate all O-rings with clean petroleum jelly prior to
assembly.
Plug / Fitting Torques
If any plugs were removed from the housing, center sec-
tion, or end cap during servicing, they should be torqued
as indicated in the accompanying tables:
ITEM
TORQUE
Housing Plugs/Drains
29 to 50 ft. lbs.
(3/4-16 or 7/8-14 O-Ring)
(39 to 68 Nm)
Bypass Passage Plug
56 to 50 ft.lbs.
(1/16-27 Pipe)
(6.4 to 16 Nm)
Loop Plugs
15 to 35 ft.lbs
(9/16-18 O-Ring)
(20 to 47 Nm)
Inlet Fitting/Plug
8 to 20 ft.lbs.
(7/16-20 O-Ring)
(11 to 27 Nm)
Figure D-3. Sauer-Sundstrand Hydrostatic Drive
Unit BDU-10-L
Figure D-4. Minor Repairs
7 - 49
7 Transmission Repair
7D Sauer-Sundstrand BDU-10L-258
Item
Qty.
Description
1.*
1
SPACER
2.*
1
SEAL
3.*
1
RETAINING RING
4.*
1
SEAL
5.*
1
SEAL
6.*
1
SEAL
7.
1
BYPASS VALVE KIT
8.
1
CAPSCREW, Socket Hd.
9.*
2
RETAINING RING
10.
1
BEARING. Shaft
11.
2
CRADLE, Bearing
12.
1
VARIABLE SWASHPLATE
13.
2
BLOCK ASSY.
14.
1
TRUNNION ARM
15.
1
GUIDE
16.
1
SPRING
17.
2
THRUST WASHER
Item
Qty.
Description
18.
2
PIN
19.
1
CHECK VALVE KIT, RH
20.
1
CHARGE RELIEF KIT
21.
1
CHECK VALVE KIT, LH
22
2
THRUST BEARING ASSY.
23.*
1
GASKET, Center Section
24.
1
PUMP SHAFT
25.
1
PUMP HOUSING KIT
26.
1
CENTER SECTION KIT
27.
1
MOTOR SHAFT
28.*
2
O-RING
29.
1
CHARGE PUMP KIT
30.
1
GEROTOR ASSY.
31.
2
CAPSCREW, 6M x 20
32.
2
SPACER PLATE
33.
3
DOWEL PIN
34.
1
CHARGE PUMP HOUSING
* Parts can be ordered as Overhaul Seal Kit.
Figure D-2. Hydro-Gear BDU10L-258 Hydrostatic Pump
Summary of Contents for 1691766
Page 2: ......
Page 20: ...2 Troubleshooting Notes 2 4 ...
Page 34: ...3 14 3 Maintenance Notes ...
Page 86: ...6 General Repair 6A Steering Front Wheel Repair Notes 6 16 ...
Page 130: ...6 60 6 General Repair 6C Foot Controls Repair ...
Page 188: ...7 46 7 Transmission Repair 7C Hydro Gear 216 3010L ...
Page 240: ...8 20 8 Mower Deck Repair Notes ...