Land-pride RC5515 User Manual download pdf (Page 34)

Section 5: Maintenance & Lubrication

RC5515 & RC6515 (540 RPM) RCM5515 & RCM6515 (1000 RPM) Rotary Cutter 318-721M

5/29/13

Table of Contents

Cutter Blade Maintenance

DANGER

Always disconnect main driveline from tractor PTO before

servicing underside of cutter. PTO can be engaged if tractor is

started causing cutter damage, bodily injury or death.

DANGER

Always secure cutter deck in the up position with solid

supports before servicing underside of cutter. Never work

under equipment supported by hydraulics. Hydraulics can

drop equipment if controls are actuated or if hydraulic lines

burst. Either situation can drop the cutter instantly even when

power to the hydraulics is shut off.

WARNING

Keep all objects out of blade bolt access hole except when

servicing cutter blades. Make sure the main driveline is

disconnected from tractor PTO before servicing cutter blades.

WARNING

Do not operate cutter with blades that are bent, out of balance,

excessively worn, excessively nicked, or with blade bolts that

are excessively worn. Such blades can break loose from the

cutter at high speeds causing serious injury or death.

CAUTION

Wear a pair of gloves when checking cutting height. Avoid

direct contact with cutting edge of blade.

Always inspect cutting blades before each use. Make

certain they are properly installed and in good working

condition. Replace any blade that is damaged, worn,

bent, or excessively nicked. Never try to straighten a bent

blade! Small nicks can be ground out when sharpening.

Refer to Figure 5-3 on page 33 when ordering Land Pride

replacement blade components.

Remove cutting blades and sharpen or replace as

follows:

1. Place tractor gear selector in park and/or set brakes,

shut engine off and remove ignition key.

2. Disconnect main driveline from tractor PTO and

secure cutter deck in the up position with solid

supports before servicing underside of cutter.

Refer to Figure 5-3 on page 33:

3. Rotate blade bolt (#1) until in alignment with access

hole “A”.

IMPORTANT: Replace cutting blades with genuine

Land Pride blades only. Blades must be replaced in

mating pairs. Not replacing both blades will result in

an out-of-balance condition that will contribute to

premature bearing breakdown on the spindle hub

and create structural cracks in the cutter housing.

4. Unscrew locknut (#5) to remove cutting blade (#2).

Blade bolt (#1) is keyed and will not turn freely.

5. Both blades should be sharpened at the same angle

as the original cutting edge and must be replaced or

re-ground at the same time to maintain proper

balance in the cutting unit. The following precautions

should be taken when sharpening blades:

a. Do not remove more material than necessary.

b. Do not heat and pound out a cutting edge.

c. Do not grind blades to a razor edge. Leave a blunt

cutting edge approximately 1/16" thick.

d. Always grind cutting edge so end of blade

remains square to cutting edge and not rounded.

e. Do not sharpen back side of blade.

f. Both blades should weigh the same with not more

than 1 1/2 oz. difference. Unbalanced blades will

cause excessive vibration which can damage

gearbox bearings and create structural cracks.

Blade Rotation

Figure 5-2

Refer to Figure 5-2:

6. Carefully check cutting edges of blades in relation to

blade carrier rotation to ensure correct blade

placement. Cutter blades must be installed with

cutting edge leading in rotation.

Refer to Figure 5-3 on page 33:

7. Insert blade bolt (#1) through blade (#2),

dishpan (#3), and flat washer (#4). Secure blade with

a new locknut (#5) and torque to 450 ft-lbs.

8. If replacing dishpan (#3), nut (#7) on gearbox output

shaft should be torqued to 550 ft-lbs. minimum and

secured with cotter pin (#6) with both legs bent

opposite directions around the nut.

9. Reconnect main driveline to tractor PTO shaft.

CCW

IMPORTANT: Examine blade bolts and their flat

washers for excessive wear and replace if worn.

IMPORTANT: Locknuts can lose their ability to lock

properly once removed. Always use a new locknut

when installing blades.

1 2 ... 29 30 31 32 33 34 35 36 37 38 39 ... 53 54

Comments to this Manuals

No comments

Land-pride RC5515 User Manual Page 34

Comments to this Manuals

Related products and manuals for Tools Land-pride RC5515