Snapper 1650 Series User Manual

SECTION 10 ■ MOWERS & DRIVES
Covered in this section are the 42 and 48" mid-mount mowers which are belt driven off a "mule" drive unit attach¬
ed to the front of the 1600 and 1650 series tractors. Also covered are the gear driven 54" mid-mount mowers used
on the 1855 series tractors. Differences are pointed out wherever pertinent in this section.
DETACHING MOWERS
1. Raise mower with mower lift then shut off Tractor
engine. Place gauge wheels in full up position.
2. Lower mower to ground.
3. Disconnect four lift links from anchor plates.
4. Disconnect hanger straps and disconnect drive
belt from clutch and idler pulleys, on 54" mowers,
disconnect PTO shaft from mid PTO.
5. If mounting ramps are used, simply put in place
and back Tractor up and over mower.
6. If mower mounting ramps are not used, slide
mower out sideways from under Tractor.
REPLACING BELT AND/OR BLADES AND
TIMING BLADES
IMPORTANT NOTE
The three blade spindles are in a straight line to pre¬
vent leaving a narrow uncut strip between the cut¬
ting swath of each blade. There is an overlap rela¬
tionship between cutting swath of center blade and
cutting swath of outside blades. The blades must
therefore, be timed so that they do not make contact
during rotation. Time blades so that outside blades
are parallel to each other while the center blade is
perpendicular.
TIMING BELT REPLACEMENT
1. Detach mower from Tractor.
2. Remove belt covers and back off nuts on outboard
spindle housing mounting bolts one turn. Tighten
nuts on belt tensioning bolts to bring outboard
spindles inboard to slacken belts.
3. Remove top belt, then bottom belt. Install new
belts in reverse order.
4. Adjust tension of bottom belt first then top belt.
Replace covers.
TIMING BELT TENSION
1. Remove belt covers and measure length of spring,
Fig. 10.1. If measurement is not 4.38", adjustment is
necessary.
2. Tighten central mower spindle housing bolts.
3. Loosen outboard spindle housing nuts, No. 2, Fig.
10.3, one turn only.
4. Loosen nuts, Fig. 10.1, completely which will allow
springs, to move spindles outboard to tension belts.
FIG. 10.1 -REPLACING BELTS AND TIMING BLADES
(48" SHOWN)
1. Adjusting Nut
2. Belt Tensioning Bolt
5. Tap spindle housing, Fig. 10.1, under mower base
with a hammer to overcome any friction at mounting
bolts.
6. Again check length of spring. If measurement is
less than 4.38" remove washer. If measurement is
more than 4.38" add washers between spring and an¬
chor bracket until spring length is correct.
7. Tighten nuts, until there is 1/16" clearance between
nut. No. 2, and anchor bracket.
8. Tighten spindle housing bolts, Fig. 10.3 to 30-35
ft.-lbs. torque. Reinstall belt covers.
S'7
10.1

Snapper 1650 Series Specifications

General

Brand	Snapper
Model	1650 Series
Category	Lawn Mower
Language	English