Dealer Service
31
MAN1248 (2/26/2018)
Pump or Motor Disassembly
(See Figure 22)
1.
Remove six screws (1) and ring (2).
2.
Slide front cover (5) from shaft (11), retain shaft
seals (3) and washer (4).
3.
Remove O-ring (6), back-up rings (8), seals (9)
from thrust plates (10) at both ends of gears.
Replace all these items with seal kit replacement
part.
Pump or Motor Reassembly
(See Figure 22)
1.
Once seal kit is installed, reassemble seal (8), ring
(9) and plate (10) onto rear of gear shafts (11) &
12) and install into housing (13). Apply same items
to front of gear shafts (11 & 12) and into housing.
2.
Place O-ring (6) onto front cover (5), place front
cover onto housing (13).
3.
Apply two new shaft seals (3) with washer (4) and
ring (2).
4.
Tighten all screws (1).
5.
Reinstall pump or motor following instructions on
pages 29 or 30.
SPINDLE FLANGE MAINTENANCE
Spindle Flange Removal
(See Figure 23)
Secure and block unit and place deck in lock-up posi
-
tion before beginning this procedure.
1.
Following procedure to remove crossbar on page
33, loosen and remove crossbar assembly (3, 4 &
5).
2.
At deck remove clamps.
3.
Remove four 1/2" fastener sets (6 & 7) between
motor (1) and spindle flange (2). Carefully remove
and relocate motor (1) with attached hoses (11 &
12).
4.
Remove six 3/4" fastener sets (8 & 9) at spindle
flange to deck. Spindle flange (2) is free to remove
at this step.
Figure 23
. Spindle Flange Removal/Installation
Spindle Flange Installation
(See Figure 23)
1.
Place spindle flange (2) on deck so that side plugs
are facing hitch.
2.
Install six 3/4" fastener sets (8 & 9) through deck
and spindle flange. Torque in star pattern to 85 lbs-
ft.
3.
Install crossbar assembly (3) and secure with nut
(5). Torque to 200 lbs-ft. Install cotter pin (4).
4.
Clean any foreign material from mating surfaces of
motor (1) and spindle flange (2). Clean with mild
abrasive if necessary.
1.
Hydraulic motor
2.
Spindle flange
3.
Crossbar assembly
4.
1/4 x 1-1/2 Cotter pin
5.
M36 Castle nut
6.
1/2 NC Flanged lock nut
7.
1/2 NC x 2-1/2 HHCS, GR5
8.
3/4 NC Flanged lock nut
9.
3/4 NC x 2-1/2 HHCS, GR5
10. 3/8 NC Flanged lock nut
11. Hose to motor
12. Hose from motor
