White Outdoor LT-1850 Operator's Manual download pdf (Page 77)

100

RegularMaintenance

WARNING

For your personal safety, do not handle the sharp

mower blades with bare hands. Careless or

improper handling of blades may result in serious

injury.

, WARNING

For your personal safety, blade mounting

capscrews must each be installed with a

hex/spline washer and spring washer, then

securely tightened. Torque blade mounting

capscrew to 45 - 55 ft. Ibs. (61 - 75 N.m.)

SERVICING THE MOWER BLADES

Service Interval: Every 100 Hours or As Required

NOTE: Mower blades must be timed perpendicular to

each other.

1. Remove mower deck (see "Mower Deck Removal").

2. See Figure 28. To remove blade for sharpening, use

a block of wood to prevent blade rotation while loos-

ening the capscrew.

3. 38", 44", & 50" Mowers: Remove the capscrew (D,

Figure 30), spring washer (C), hex washer (B), and

blade.

40" Mowers: Remove the capscrew (A, Figure 32),

spring washer (F), spline washer (G), alignment pin

(E) and blade (D). Do not remove the blade adapter

(C).

54" Mowers: Remove the capscrew (D, Figure 31),

spring washer (C), spline washer (B), and blade.

4. Use a file to sharpen blade to a fine edge. If blade is

damaged, it must be replaced.

5. Balance the blade as shown in Figure 29. Center the

blade's hole on a nail lubricated with a drop of oil. A

balanced blade will remain level.

6. Reinstall the blade (Figures 30-32) with the tabs

pointing up toward the mower deck as shown.

Reinstall the alignment pin (E).

7. 38", 44", & 50" Mowers: Reinstall the hex washer

(B, Figure 30), spring washer (C) and capscrew (D).

Use a wooden block (A) to prevent blade rotation

while tightening the capscrew (D) to 61-75 N.m (45-

55 ft. Ibs.).

40" Mowers: Be sure the blades are positioned per-

pendicular to each other as shown in Figure 33. If

not, perform the Mower Blade Timing procedure

found in this section. Reinstall the spline washer (G,

Figure 32), spring washer (F) and capscrew (A). Use

a wooden block (B) to prevent blade rotation while

tightening the capscrew (A) to 61-75 N.m (45-55 ft.

Ibs.).

LOOSEN

Figure 28. Blade Removal

Nail

Figure 29. Balancing The Blade

Figure 30. Blade Installation - 38", 44", 50" Mowers

A. 4x4 Wood Block

B. Hex Washer

C. Spring Washer

D. Blade Bolt

54" Mowers: Reinstall the spline washer (B, Figure

31 ), spring washer (C) and capscrew (D). Use a

wooden block (A) to prevent blade rotation while

tightening the capscrew (D) to 61-75 N.m (45-55 ft.

Ibs.).

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White Outdoor LT-1850 Operator's Manual Page 77

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