Toro REELMASTER 4500-D Operator's Manual page 20

5. Before starting the engine, close the by-pass valve. Do
not start the engine when the valve is open.
IMPORTANT: Running the machine with the bypass valve
open will cause the hydraulic system to overheat.
If towing with the front wheel motors disengaged, the Tow
Bar Assembly, Toro part no. 58-7020, must be used.
OPERATING CHARACTERISTICS
Familiarization—Before mowing grass, practice in an open
area. Start and stop the engine. Operate the machine in for-
ward and reverse. Lower and raise the cutting units simulta-
neously and individually. Engage and disengage the reels.
Operate with all cutting units down, then with only an individ-
ual cutting unit. When you feel familiar with the machine,
practice operating around trees and obstacles. Also drive up
and down slopes using both mowing and transport speeds.
Warning System—If a warning light comes on during opera-
tion, stop the machine immediately and correct the problem
before continuing operation. Serious damage could occur if
you operate the machine when it has a malfunction. For short
intervals, however, you can use the emergency engine over-
ride button (Fig. 11) to operate the engine if it stops because
of overheating.
Mowing—When you are at the area to be mowed, release the
front cutting unit transport latch, center latch and outside
latches. Lower the cutting units, engage the hand brake and
stop the engine.
Cutting Unit Grass Deflectors—Adjust the grass deflectors
to the horizontal position (Fig. 19), so grass clippings disperse
backward; out and away from the cutting units. This will pre-
vent clumps of grass clippings—especially wet grass clip-
pings—dropping off the machine or cutting units, which
affects the turf's appearance.
Note: Generally you can adjust the deflectors down slightly in
dry grass and up slightly in wet grass.
While checking the speedometer, match the ground speed lim-
iter (Fig. 20) and the reel speed control knob (Fig. 21) to the
desired height-of-cut: refer to the cutting Charts (Fig. 22).
Use the decal at side of steering column as a guide only.
Cross Cut Link—When engaging/disengaging the center lift
control lever, the cross-cut link will simultaneously
engage/disengage the mow control lever to eliminate the need
for two separate hand operations. If the mow control lever
Figure 18
1. By-Pass Valve
2. Traction pump
Figure 19
1. Grass deflector
Figure 20
1. Ground speed limiter
2. Traction pedal