Snapper SGV13321KW, Safety Instructions & Operator'S Manual

20

SECTION 6 – ADJUSTMENTS & REPAIRS 

WARNING 

DO NOT attempt any maintenance, adjustments or 
service with the engine running. Stop engine. Stop 
blades. Lock Traction Levers. Remove key. 

Disconnect spark plug wires from spark plugs and 
secure wires away from spark plugs. Engine and 
components are HOT. Avoid serious burns, allow all 
parts to cool before working on machine. 

6.6.2.  CUTTING DECK ADJUSTMENT 
Cutting height can be adjusted by raising or lowering the 
Cutting Deck, via Front Caster and Rear Axle 
adjustments: 
1. FRONT CASTER ADJUSTMENT: Each Caster Wheel 
Assembly has five (5) 1/2” and two (2) 1/4” spacers 
positioned on the caster shaft. By removing retainer pin, 
and repositioning spacers above or below Caster 
Support Tube, the spacers will raise or lower cutting 
height in 1/2” increments.  See Figure 6.8.  NOTE: For 
clearance purposes, one 1/4" spacer must remain below 
caster support tube. 
 

FIGURE 6.8 

 
NOTE: Rear axle must be adjusted in conjunction with 
front casters to achieve correct cutting height 
adjustment. 
 
 
2. REAR AXLE ADJUSTMENT: Position a floor jack 
beneath rear of mower and raise mower.  Loosen axle 
bolts and adjust axle assembly up or down to 
correspond with front caster adjustment.  See Figure 
6.9.  NOTE: When adjusting axle make sure that rear of 
cutting deck is 1/4" higher than front. 
 

FIGURE 6.9 

 
NOTE: Front casters must be adjusted in conjunction 
with rear axle to achieve correct cutting height 
adjustment. 

NOTE: Traction rods may need to be adjusted after 
cutting height adjustment is complete. 

 
6.7  DECK BELT ADJUSTMENT & 

REPLACEMENT  

NOTE: For belt adjustment, proceed directly to step 5. 
1. 

Remove nut securing deck idler tensioning rod to 
rod bracket, and slide rod out from bracket.  See 
Figure 6.10. 

2. 

Remove loosened belt from around blade spindle 
pulleys, idler pulley and clutch pulley. 

3. 

Install new belt, using same pulley routing.  See 
Figure 6.10. 

4. 

Reinsert tensioning rod into rod bracket, and 
secure with nut removed in previous step. 

5. 

Adjust belt tension by tightening or loosening 
tensioning rod nut.  Belt should have 10 lbs. 
pressure with a 3/8” deflection. 

FIGURE 6.10 

SLIDE 
CASTER 
SHAFT 
OUT 

CASTER 
SUPPORT TUBE 

REMOVE 
RETAINER PIN 

NOTE: THOSE SPACERS 
REMOVED FROM 
BOTTOM OF CASTER 
SHOULD BE 
REINSTALLED AT TOP 
BEFORE INSERTING 
RETAINER PIN.

REPOSITION 
SPACERS TO 
ADJUST DECK 
HEIGHT 

LOOSEN 
BOLTS 

ADJUST 
AXLE 

TENSIONING 
ROD NUT 

CHECK 
TENSION HERE 

ROUTE AROUND 
CLUTCH