drago LEGACY Series User manual

CLINIC GUIDE

MODEL IDENTIFICATION
1Corn Head Clinic Guide –
Legacy, Series I & II
MODEL IDENTIFICATION
LEGACY –2001 to 2004
The Legacy model,the platform that both Series I & II are based on. It is easily identified by the red frame as well
as steel snouts and bonnets. This was the first model introduced to North America. The drive system on the Legacy
head is exclusively oil bath driven.
SERIES I –2005 to 2012
The Series I corn head is built on the Legacy platform,with a few changes. These changes include a dark gray
frame color,the introduction of poly snouts and bonnets (steel snouts were optional), and a folding head option
being offered (2012 models). The drive system on Series I heads were predominately oil bath drivenwith some
larger models utilizing the heavy-duty gearbox drive. They are identified by the decal on the end of the head that
shows “DRAGO BY OLIMAC”
SERIES II –2013 to Current
The Series II corn head is built on the Legacy & Series I platform. The major changesfrom Series I to Series II
included updated poly snouts and bonnets (steel snouts were an option), the drive systems are oil bath drive
chains for heads smaller than 12 rows & heavy-duty gearbox drive for all heads 12 rows and larger. They are
identified by the decal on the end of the head that shows “DRAGO BY OLIMAC SERIES II”

INTRODUCTION
Corn Head Clinic Guide – Legacy, Series I & II 2
Table of Contents
MODEL IDENTIFICATION ......................................................................................................................................... 1
MAINTENANCE ............................................................................................................................................................3
REQUIRED FLUIDS ..................................................................................................................................................... 4
LUBRICANT PART NUMBERS ..................................................................................................................................... 4
MAINTENANCE SCHEDULE ........................................................................................................................................ 5
PRE-SEASON ........................................................................................................................................................... 5
NORMAL OPERATION ............................................................................................................................................. 5
DOWN CORN ........................................................................................................................................................... 6
PRE-SEASON ............................................................................................................................................................... 7
20 HOUR ..................................................................................................................................................................... 8
50 HOUR ..................................................................................................................................................................... 8
100 HOUR ................................................................................................................................................................. 10
250 HOUR OR YEARLY ............................................................................................................................................. 10
INITIAL SETTINGS...................................................................................................................................................12
CORN HEAD ANGLE ...................................................................................................................................... 12
HEAD SPEED ................................................................................................................................................ 13
SNOUT ADJUSTMENTS ................................................................................................................................. 14
DECK PLATE GAP ......................................................................................................................................... 14
DECK PLATE TENSION ................................................................................................................................. 15
GATHERING CHAIN TENSION ...................................................................................................................... 15
PART REPLACEMENT .............................................................................................................................................. 16
PERFORMANCE PARTS........................................................................................................................................... 19
TROUBLESHOOTING................................................................................................................................................20
SERVICE VIDEOS ..................................................................................................................................................... 23

MAINTENANCE
3Corn Head Clinic Guide –
Legacy, Series I & II
MAINTENANCE
Themaintenance items in this section outlines the recommended intervals and lubricants required to keep the
corn head functioning properly.
For more information on maintenance items and repairs please refer to your Operators Manual or the Drago
Service Video website at https://www.dragotec.com/service-video
It is important to use only the lubricants specified or degradation of corn head performance may appear over
time. Unlike most other EP0 greases, Mobilux EP0 grease does not use clay or polymers as the base material.
When clay-based greases are used over time the grease evaporates and leaves behind the base material. This base
material deposit can build up over time preventing normal operation. This is the common cause of deck plates and
gathering chain tensioners to stick. The pictures below show what the base material deposits look like.

MAINTENANCE
Corn Head Clinic Guide – Legacy, Series I & II 4
REQUIRED FLUIDS
Mobilux EP 1 grease is recommended for heads running in sustained ambient temperatures of 100°F (38°C) or higher.
LUBRICANT PART NUMBERS
LUBRICANT LOCATION CAPACITY
SAE 30W Oil
Mobilux EP 0 Grease
Mobil SHC 634 Synthetic Oil
Gathering Chain
Stalk Rollers
Gathering Chain Tensioner
Gathering Chain Drive Sprocket
Folding Joints
Tow Shaft Bearings
Deck Plate Tension Piston
PTO Drive Shafts
Row Unit Slip Clutch
Row Unit Gearbox (Non-Chopping)
Row Unit Gearbox (Chopping)
Input Shaft Bearing
Transfer Gearbox
Oil Bath
Heavy-Duty Drive Gearbox
—
—
—
—
—
—
—
—
—
135 oz. (4.0L)
152 oz. (4.5L)
—
15 oz. (450mL)
57 oz. (1.7L)
118 oz. (3.5L)
LUBRICANT SIZE PART NUMBER
Mobilux EP 0 Grease 14 oz. (414 mL) Tube –Case of 10
5 Gallon Bucket (19L)
GT-1000T
DR-MOB-EPO
Mobilux EP 1 Grease 5 Gallon Bucket DR-MOB-EP1
Mobil SHC 634 Synthetic Oil 1 Quart (0.9L) –Single
Case of 12 Quarts
DR-MOB634-QT
DR-MOB634-CASE
5 Gallon Bucket Pump —5GAL-PUMP-#321

MAINTENANCE
5Corn Head Clinic Guide –
Legacy, Series I & II
MAINTANCE SCHED ULE
PRE-SEASON
NORMAL OPERATION
CHECK
ADJUST
LUBRICATE -Gathering Chain Tensioner
-Stalk Rollers
-Gathering Chain Tension
-Purge Deck Plate Piston
-Cross-Auger Drive Chain Tension
-Heavy-Duty Gearbox Oil Level
-Oil Bath Case Oil Level
-Row Unit Gearbox Grease Level
-Transfer Gearbox Oil Level
-Deck Plate Gap
EVERY 20 HOURS
LUBRICATE
-Stalk Rollers
EVERY 50 HOURS
CHECK
-Heavy-Duty Gearbox Oil Level
-Oil Bath Case Oil Level
-Row Unit Gearbox Grease Level
-Transfer Gearbox Oil Level
-Gathering Chain Tension
LUBRICATE
-Cross-Auger Drive Chain
-Gathering Chain Drive Sprocket
-Row Unit Slip Clutch
-Input Shaft Bearings
-PTO Shaft U-Joints
-PTO Shaft Shield Bearings
EVERY 100 HOURS
ADJUST -Oil Bath Drive Chain Tension
-Cross-Auger Drive Chain Tension
LUBRICATE -Gathering Chain Tensioner
EVERY 250 HOURS OR ANNUALLY
CHECK
ADJUST
-Inspect Gathering Chain Guides
-Gathering Chain Tension
LUBRICATE
-Deck Plate Pistons
-Inner Folding Pin
-Outer Folding Pin
-Wing Pin
-Locking Piston
-Inner Tow Shaft Bearing
-Outer Tow Shaft Bearing
IF PERFORMING ANNUAL MAINTENANCE COMPLETE THE 20, 50,AND 100 HOUR SERVICES IN
ADDITION TO THE 250 HOUR SERVICE
CHECK
-Inspect Stalk Chopper (if equipped)

MAINTENANCE
Corn Head Clinic Guide – Legacy, Series I & II 6
DOWN CORN
DAILY
LUBRICATE
-Stalk Rollers
EVERY 20 HOURS
CHECK
-Gathering Chain Tension
LUBRICATE
-Oil Bath Drive Chain Tension
-Gathering Chain Tensioner
EVERY 50 HOURS
ADJUST
-Heavy-Duty Gearbox Oil Level
-Oil Bath Case Oil Level
-Row Unit Gearbox Grease Level
-Transfer Gearbox Oil Level
LUBRICATE
-Cross-Auger Drive Chain
-Gathering Chain Drive Sprocket
-Row Unit Slip Clutch
-Input Shaft Bearings
-PTO Shaft U-Joints
-PTO Shaft Shield Bearings
EVERY 100 HOURS
CHECK
ADJUST
-Inspect Gathering Chain Guides
-Gathering Chain Tension
LUBRICATE
-Deck Plate Pistons
-Inner Folding Pin
-Outer Folding Pin
-Wing Pin
-Locking Piston
-Inner Tow Shaft Bearing
-Outer Tow Shaft Bearing
IF PERFORMING YEARLY MAINTENANCE COMPLETE THE 20, 50, AND 100 HOUR SERVICES IN
ADDITION TO THE 250 HOUR SERVICE
ADJUST
ADJUST
EVERY 250 HOURS OR YEARLY
-Cross-Auger Drive Chain Tension

MAINTENANCE
7Corn Head Clinic Guide –
Legacy, Series I & II
PRE-SEASON
①Check Heavy-Duty Gearbox Oil
② Check Oil Bath Oil Level
③ Check Row Unit Gearbox Grease
④Check Transfer Gearbox Oil
⑤Check Deck Plate Gap
⑥Adjust Gathering Chain Tension
⑦Purge Deck Plate Piston
⑧Adjust Cross-Auger Chain
⑨Grease Gathering Chain

MAINTENANCE
Corn Head Clinic Guide – Legacy, Series I & II 8
PRE-SEASON (Cont.)
20-HOUR
50-HOUR
⑩Grease Stalk Rollers
①Grease Stalk Rollers
②Inspect Stalk Chopper
①Check Heavy-Duty Gearbox Oil
②Check Oil Bath Oil
③Check Row Unit Gearbox Grease

MAINTENANCE
9Corn Head Clinic Guide –
Legacy, Series I & II
50-HOUR (Cont.)
④Check Transfer Gearbox Oil
⑤ Check Gathering Chain Tension
⑥ Lube Cross-Auger Chain
⑦Grease Gathering Chain Drive
⑧Grease Row Unit Slip Clutch
⑨Grease Input Bearing
⑩Grease PTO Shield Bearing
⑪Grease PTO U-Joint