Snapper HZT21481BV important safety instructions Maintenance

Section 4 - MAINTENANCE

! WARNING !

DO NOT attempt any maintenance, adjustments or service with engine running. STOP engine. STOP blades. Set brake. Remove key. Remove spark plug wires and secure away from spark plugs. Engine and components are HOT. Avoid serious burns; allow suf- ficient time for all parts to cool.

7.Remove bolts and nuts to disconnect both stabiliz- ers from mower deck and power unit. See Figure 4.12 and 4.13.

4.6DECK REMOVAL (Continued from previous page) 4. Remove inside nuts that secure chain to front lift arm. See Figure 4.10.

FRONT

LIFT ARM

	CHAIN
REMOVE INSIDE
NUT THAT
SECURES CHAIN TO	DECK HANGER
FRONT LIFT ARM	BRACKET

FIGURE 4.10

5.Remove inside nuts that secure chain to rear lift arm. See Figure 4.11.

REMOVE INSIDE NUT

THAT SECURES CHAIN

STABILIZER

DECK

STABILIZER

DECK

REMOVE NUTS AND BOLTS

THAT SECURE STABILIZERS

TO MOWER DECK

FIGURE 4.12

REMOVE NUTS AND BOLTS

THAT SECURE STABILIZERS

TO POWER UNIT

TO REAR LIFT ARM

REAR LIFT ARM

CHAIN

FIGURE 4.11

6.Remove mower drive belt from around blade clutch pulley. Refer to Section “MOWER DRIVE BELT REPLACEMENT AND ADJUSTMENT”.

FIGURE 4.13

8.Remove wooden blocks from underneath deck and roll/slide deck from underneath power unit.

9.Reinstall deck in reverse order, in which it was removed. Torque hardware to 20 to 30 ft lbs.

4.7HYDRAULIC FLUID FILTER

IMPORTANT: REFER TO SECTION "HYDRAULIC SYS- TEM PURGING" BEFORE PERFORMING FILTER MAIN- TENANCE.

The first filter change is recommended at 200 hours. After the first change, the recommended interval is every 500 hours. Replace with approved filter only (Snapper P/N 1719168). Install following instructions provided with the filter. Add SAE 20W50 oil to bring the level in the reservoir to 1-½" below top of filler neck. Run machine for several minutes and re-check fluid level. Add oil as needed.

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