Toro Groundsmaster 4000-D Service Manual page 43

Coupler Removal (Fig. 21)
NOTE: The hydraulic pump assembly needs to be re-
Engine Side Hydraulic
moved from engine before coupler can be removed.
Pump Side
1. If engine is in machine, remove hydraulic pump as-
1
sembly from machine (see Piston (Traction) Pump Re-
moval in the Service and Repairs section of Chapter 4
-- Hydraulic System).
2. Remove flywheel plate and spring coupler from en-
gine using Figure 21 as a guide.
Coupler Installation (Fig. 21)
1. Position spring coupler to engine flywheel and align
mounting holes. Make sure that coupling hub is away
from engine flywheel (Fig. 22).
2
2. Secure coupler to flywheel with eight (8) cap screws
and washers. Torque cap screws in a crossing pattern
from 29 to 33 ft- -lb (40 to 44 N- -m).
Figure 22
1. Coupler 2. Engine flywheel
3. Position flywheel plate to engine. Secure flywheel
plate with eight (8) cap screws (item 1) and washers us-
ing a crossing pattern tightening procedure. Torque cap
screws in a crossing pattern from 28 to 32 ft- -lb (38 to
43 N- -m).
4. If engine is in machine, install hydraulic pump as-
sembly to machine (see Piston (Traction) Pump Installa-
tion in the Service and Repairs section of Chapter 4 --
Hydraulic System).
Groundsmaster 4000--D/4010--D Page 3 - - 25 Yanmar Diesel Engine