OMCC59112

CC8708
CC8708-UN-05OCT98

A - Guide

Perform the following procedure to adjust plungerhead properly into bale case:

Inspect Lower Right Bale Case Guide

NOTE: It is easier to check bale case guide for wear and straightness with plungerhead removed.

Inspect lower right bale case guide (A) for wear. Replace if worn.

Inspect guide (A) for straightness. It must be completely straight, within 0.8 mm (0.03 in.), along the entire length.

Shim the guide if necessary.
Adjust Position of Pitman (339 and 349)

CC8711-UN-05OCT98

A - Pitman

B - Centerline

Centerline (B) of pitman (A) must be 180 mm (7 in.) from right-hand side of bale case on a 339 baler and 190 mm (7.5 in.) on a 349 baler.

When plungerhead is out of bale case, measure distance from right-hand side of plungerhead.

If necessary, adjust distance by repositioning washers on pitman wrist.

Loosen all scrapers to prevent binding of plungerhead.

Install plungerhead.

Adjust Knife to Stationary Knife

CC8709-UN-25SEP98

A - Plungerhead Knife

B - Stationary Knife

C - Clearance

D - Shims

Move the plungerhead until plungerhead knife (A) is opposite stationary knife (B).

When pushing plungerhead to the right, clearance (C) between plungerhead and stationary knife must be 0.5—0.8 mm (0.02—0.03 in.) at the bottom.

Add or remove shims (D) behind stationary knife (B) to adjust clearance.

To seat stationary knife screws, hammer repeatedly while tightening the screws to 100—120 N·m (71—86 lb.-ft.).

Inspect Rear Plungerhead Side Clearance

E19469-UN-09OCT00

A - Knife

B - Side Guide

C - 0.1—1.4 mm (0.003—0.05 in.)

Move plungerhead to rear position.

Push plungerhead to the left and measure clearance (C) between plungerhead knife (A) and side guide (B). Clearance must be 0.1—1.4 mm (0.003—0.05 in.).

Inspect Front Plungerhead Side Clearance

E19470-UN-20SEP88

A - Knife

B - Guide

Move plungerhead to front position.

Push plungerhead to the left and measure clearance between plungerhead knife (A) and side guide (B). Clearance must be less than 0.8 mm (0.03 in.).

Adjust Plungerhead Side Clearance

CC8712-UN-05OCT98

A - Screws

B - Lock Nuts

C - Guide Angle

D - Roller

IMPORTANT: Do not use T-screws for adjusting; use only to maintain clearance after adjustment.

To adjust, loosen four screws (A) and lock nuts (B). Pry plungerhead to extreme right.

Move guide angle (C) against roller (D) and tighten mounting screw (A) and lock nuts (B) of the respective guide.

Move the plungerhead to the next guide mounting screw (A) and repeat previous step.

Repeat this procedure on all guide mounting screws.

Recheck the clearances and readjust if necessary.

Adjust Knife Top and Bottom Clearance

CC8717-UN-05OCT98

CC7754-UN-23SEP98

E18456-UN-03OCT88

A - Lock Nut

B - Hole

C - Adjusting Nuts

D - Adjusting Nuts

E - Knife

F - Stationary Knife

G - 0.8—1.3 mm (0.03—0.05 in.)

H - 1.5—1.8 mm (0.06—0.07 in.)

While pushing plungerhead to the left (without tilting), clearance between plungerhead knife (E) and stationary knife (F) must be 0.8—1.3 mm (0.03—0.05 in.) at the bottom (G) and 1.5—1.8 mm (0.06—0.07 in.) at the top (H).

If necessary, move plungerhead to align nut (A) of support roller with hole (B) in left-hand side of bale case.

Loosen nut (A). Adjust nuts (C) and (D) to obtain correct knife top clearance (H).

Tighten nut (A) to 137 N·m (98 lb.-ft.).

Adjust Plungerhead Front Side Clearance

E18463-UN-20SEP88

A - Guide

B - Pad

While pushing the plungerhead to the right, the front plungerhead side clearance must not exceed 0.8 mm (0.03 in.) over the entire stroke.

NOTE: To prevent knocking of the plungerhead, this adjustment must be as tight as possible, but avoiding binding.

To adjust, loosen five screws of lower right guide (A) and move it to obtain required clearance to front lower pad (B).

Tighten screws.

Adjust Plungerhead Vertical Clearance on Left-Hand Side

CC8710-UN-05OCT98

A - Plungerhead

B - 0.8 mm (0.03 in.) Maximum

C - Bale Case

D - Top Guide

E - Shims

IMPORTANT: Incorrect adjustment may cause plungerhead knife to strike against stationary knife and/or cause shear bolt breakage.

Move plungerhead (A) from the rear to the front and measure clearance (B) between case (C) and top guide (D), over the entire length. Clearance must be 0.8 mm (0.03 in.) maximum.

If necessary, loosen nuts and remove or add shims (E).

Adjust Plungerhead Vertical Clearance on Right-Hand Side

E18464-UN-20SEP88

A - Pad

B - Bale Case

Clearance between right top wear pad (A) and bale case (B), measured along the entire length, must be 0.8 mm (0.03 in.).

Add or remove shims as necessary.

NOTE: It is not necessary to have the same number of shims in all three locations, but do not use more shims in center than at the ends.

Adjust Front Scrapers

CC7753-UN-23SEP98

A - Scrapper

B - Plungerhead Guide

C - Screws

IMPORTANT: Scrapers must have a certain clearance to bale case in all plungerhead positions so that they cannot hold rollers off the guide. Move plungerhead along its entire stroke in order to find highest points of scrapers.

Adjust front scraper (A) to obtain a clearance of 0.2 mm (0.01 in.) to plungerhead guide (B) by loosening two cap screws (C).

Adjust Right Rear Scraper

E18465-UN-20SEP88

A - Scrapper

Adjust right rear scraper (A) to obtain a maximum clearance of 0.2 mm (0.01 in.) to the plungerhead guides.

Adjust Left Rear Scraper

E18467-UN-20SEP88

A - Plungerhead Face

B - 1.5—4.5 mm (0.06—0.18 in.)

C - Guide

To adjust left rear scraper, move adjustable plungerhead face (A) to clear inside of left bale case side by 1.5—4.5 mm (0.06—0.18 in.) (B) over entire stroke of plungerhead.

NOTE: It is preferable to use the 1.5 mm (0.06 in.) dimension.

Adjust face down to guide (C) with a maximum clearance of 0.2 mm (0.01 in.).

Plungerhead must move easily by hand through a complete cycle after all adjustments have been carried out.

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