Davco BC604 SS User manual

March 2010
March 6, 2009
B BE EF FO OR RE E O OP PE ER RA AT TI IN NG G
T
TH HE E D DA AV VC CO O ® B BR RU US SH H C CU UT TT TE ER R
A
AC CC CO OM MP PA AN NY YI IN NG G T TH HI IS S M MA AN NU UA AL L, ,
P
PL LE EA AS SE E I IN NS ST TA AL LL L
T
TH HE E I IN NC CL LU UD DE ED D C CA AU UT TI IO ON N D DE EC CA AL LS S
IN THE CAB OF THE BRUSH CUTTER
CARRIER IN A HIGHLY VISIBLE AREA

March 2010
March 6, 2009
W
WE EL LC CO OM ME E
Congratulations on your purchase of a DAVCO ®
Manufacturing BC604SS Brush Cutter. The DAVCO® Brush
Cutter, when combined withan approved carrier, will provide
you with unmatched durability, productivity and versatility. As
an Owner or Operator, it is your responsibility to learn the
capabilities and limitations of the DAVCO®BC604SS Brush
Cutter to maximize both safety and performance. Before
operating this DAVCO®product, make sure you read and
understand this owner’s manual as well as your carrier’s
operations manual. If you have any questions or comments
regarding this or other DAVCO® products, don’t hesitate to
contact us by phone @ [phone], by fax @ [phone]
or by e-mail: [e-mail].

March 2010
March 6, 2009
P
Pe er rs so on na al l & & P Pr ro op pe er rt ty y S Sa af fe et ty y
•Brush cutting, mowing, or other operations that can cause flying
debris, can be a fire hazard in the carrier. With the engine off and
cool, regularly inspect and clean the engine compartment and other
areas where there may be hot or rotating parts. This should be
performed as often as needed to prevent the combustion of this
debris. Failure to do so could result in a fire, causing severe
machine damage, injury or death.
•DO NOT operate DAVCO ®Brush Cutters within 200 yards of
living things or items susceptible to damage from flying debris or
falling trees.
•DO NOT operate without safety approved shielding (door).
Proper Personal Protective Equipment (i.e. Safety glasses, hard
hat, dust mask, etc.) is highly recommended. Failure to do so
could result in damage, injury or death.
•When the disc is rotating, DO NOT tilt the DAVCO® Brush
Cutter so the knives are in line with the operator.
•Before servicing or leaving the cab: be sure the hydraulics are
disengaged, the engine is shut off, and the discs have come to a
complete stop. (Note: to prevent run-on, try to stall the disc into
the ground or brush and disengage the hydraulics.)
•To remove debris from the brush cutter, the brush cutter must
remain flat on the ground. Any other method may result in
damage, injury or death.
•DO NOT straighten bent cutting knives. Straightening bent
knives may cause cracking. Bent knives should be replaced with
new DAVCO ®replacement knives.

March 2010
March 6, 2009
S
SP PE EC CI IF FI IC CA AT TI IO ON NS S: :
Attachment type: Industrial Brush Cutter
Model Number: BC604 SS
Attachment Weight: 1500 lbs.
Required Hydraulic Flow: 22-30gpm
Required Hydraulic Pressure: 3000 psi
P
PL LE EA AS SE E N NO OT TE E: :
•It is the responsibility of the owner/operator to inspect and maintain parts and
equipment for the utmost reliability and safety.
•Periodically check all nuts and bolts for proper tightness and excessive wear.
•For the owner/operator’s convenience, DAVCO ® Manufacturing has provided
a parts list in this operator’s manual for replacement parts . Factory
Replacement parts are to be used to maintain warranty.
•Before shutting off the hydraulic motor, gradually throttle down to idle before
disengaging the hydraulic valve. This helps to prevent cavitation in the
hydraulic motor, and to help slow the cutting disc down; it can be stalled into
the ground or brush after being disengaged.
•Route Hoses properly & watch your hoses, pinched hoses are not warrantable

March 2010
March 6, 2009
3. General Operations
Fig. 3-1
*The BC-604SS model DAVCO® Brush Cutter is rated for cutting
vegetation and trees up to 4 inches in diameter.
Fig. 3-2
For optimal performance, the DAVCO® Brush Cutter should be kept level with
the ground during operation (see Fig. 3-2). Caution-to prevent damage to your DAVCO®Brush Cutter take
care to avoid hidden obstacles such as rocks, underground wires and other buried objects.
Fig. 3-3
Figure 3-3 shows a common position for the DAVCO® Brush Cutter during
operation. This cutting position is also a very effective method of mulching debris into finer pieces. Note:
excessive tilting of the Davco®Brush Cutter is not recommended, although slight tilting of the deck into
the direction of travel can increase cutting efficiency.
Fig. 3-4
*Figures 3-4 demonstrates a method of brush cutting that is not recommended.
Cutting in this manner throws debris outward and increases the likelihood of bending the cutting blades.

March 2010
March 6, 2009
Fig. 3-5
Never expose the underside of the DAVCO® Brush Cutter to the operator’s cab (Fig.
3-5) or to personnel within sight of the machine. Flying debris can cause equipment damage, serious injury
or death. Never exit cab while loader arms are raised.
4. Knife change
Fig. 4-1
Remove the disc inspection cover (1) in Fig. 4-1 to gain access to the top of the disc.
Rotate the disc by hand until the first set of knife bolts are visible in the hole.
Fig. 4-2
To remove the knives, set the DAVCO® Brush Cutter on the stand or blocks, undo
the nuts (as illustrated on Fig 4-2), drop the bolts, and then remove the knives and the pucks horizontally.
To install the knives, reverse the procedure, and torque the bolts to 250 ft/lb for Course thread or 300 ft
lbs for fine thread bolts. Note- Remember to re-torque the bolts after the first 8 hours of operation
following a knife replacement
5. Identification
Fig 5-1
Fig. 5-1 shows the identification of the DAVCO® Brush Cutter that includes the
serial numbers and the model (B). Please refer to these numbers when calling for technical support, or
replacement parts.
Fig 6-1
Spindle bolts (Item A in Figure 6-1) must be torqued to 300 ft/lb. Inspect
periodically.

March 2010
March 6, 2009
Maintenance & Tips
•Grease Daily: Four or five pumps of quality grease from a hand pump grease gun, which meet the
NLGI GC/LB requirements to each bearing’s grease nipple once a day minimum.
•Cutting Knives are to be inspected daily for sharpness, excessive wear or bending (If used while
bent, damage to the bolts, pucks and discs may occur). DAVCO® knives can be sharpened, or
turned over. DO NOT straighten bent cutting knives.
•Pucks are to be inspected periodically and with every knife change for excessive wear. Rotate the
pucks 1/3 of a turn with each new knife and replaced if necessary. For maximum Puck life put a
coating of assembly grease around the outside of the puck.
•Knife bolts to be inspected with every knife change for excessive wear or bending. Bolts have to
be changed if any damage is found. Torque the knife bolts to 250 ft/lbs. for Course thread or 300
ft lbs for fine thread bolts. Re-torque the knife bolts after the first 8 hours of use, and as
required thereafter.
•Stover nuts to be inspected and changed with every third knife change because they may lose
their self-locking ability(When using Course thread bolts).
•Discs need to be inspected at regular intervals. After excessive use cracks may appear, if this is the
case the disc assemblies must be changed.
•Housing Bearings: With the disc rotating at a low RPM, listen for rumbling or grinding sounds in
the housing, which could be a sign of possible bearing failure.
•Spindle Nut (item #3, on Fig. 7-1) torque must not exceed 200 in/lb. Excessive preload on
bearings will cause premature failure. Check pre-load every 200hrs.
•Maintain a constant RPM on the DAVCO® Brush Cutter, using the travel speed of the carrier to
determine the thoroughness of the cut. The slower that the carrier travels, the more complete the
cut that the DAVCO® Brush Cutter will make, and the finer the mulch.

March 2010
March 6, 2009
8. Parts List (BC 604 SS). Refers to Figs. 7-1, 7-2 & 7-3
1
0166-063
1
Spindle Nut Lock Plate
2
0166-062
1
Spindle Housing
3
0402-097
1
Spindle Nut
4
0166-038
1
Spindle
5 0402-089 1 Bearing & Seal Kit
6
0166-061
1
Top Disc
7
0402-088
4
Puck
8
0402-091
4
Cutting Knife
9
750
1
Knife Bolt Kit (supersedes 0402-092)
10
0166-011
1
Spindle Bolt Kit
11
0166-047
1
Bottom Disc Assy
631
1 set
Bolt head Guard *
12
0166-021
1
Spindle Bolt Guard
13
208A
4
Bolt
14
0166-037
1
Disc Spacer
15
0402-087
1
Motor Pilot Ring
16
0402-095
1
Anti-Cavitation Housing
17
0402-086
4
Motor Washer
18
209
4
Bolt
19
0402-093
1
Hydraulic Motor
20
0402-094
1
Anti Cavitation Cartridge
21
210
10
Bolt
22
213
1
Grease Nipple*
23
204
1
Grease Nipple*
24
205A
4
Allen Head Cap Screw
25
206
1
M-ORB Hex Head Plug
26
214
2
O-Ring
27
Depends On Carrier
2
Quick Coupler
28
Depends On Carrier
2
Hose
29
0166-008
1
Safety Bar
30
0166-003
2
Rod End Kit
32
121
1
Inspection cover (See Figure 4-1)
* Not Shown

March 2010
March 6, 2009
Fig. 7-2

March 2010
March 6, 2009
D
DA AV VC CO O ®
B
BR RU US SH H C CU UT TT TE ER R
O
On ne e ( (1 1) ) Y Ye ea ar r W WA AR RR RA AN NT TY Y
The warranty herein set forth applies solely to the DAVCO ®Brush cutter:
SERIAL NUMBER .
Manufactured by DAVCO ®Manufacturing Ltd. and is in lieu of all other warranties,
expressed or implied. No person, agent, or dealer is authorized or empowered to give any
other warranty or to assume any other liability on behalf of DAVCO ®Manufacturing
Ltd. The warranty is limited to the original purchaser only; no warranty is transferable to
any subsequent owner.
DAVCO ®Manufacturing Ltd. warrants the DAVCO ®Brush Cutter against defects in
material and workmanship under normal use and service for a period of one year with
unlimited hours from the date of delivery, and will repair or replace at DAVCO ®
Manufacturing Ltd.'s discretion, free of charge to the original purchaser, any part that our
examination reveals to be defective in material or workmanship. The warranty includes
labor based on a flat rate, but does not include transportation costs, diagnosing time,
clean up, or consequential damages. (Motor damage due to carrier hydraulic system
contamination is not covered.)
1. Only Original Equipment parts are covered by this warranty.
2. Wear items are not covered against normal use.
DAVCO ®Manufacturing Ltd. reserves the right to inspect components and or parts
prior to any decision involving a warranty claim. In no case shall DAVCO
®Manufacturing Ltd. grant a remedy that exceeds the purchase price of the component or
part, and or the time to remove and or replace the component or part.
DAVCO ®Manufacturing Ltd. reserves the right to make design changes without
incurring any obligation to make such changes to previously manufactured equipment.
This warranty does NOT apply to damage caused by misuse, abuse, neglect (lack of
lubrication), or improper adjustment, accident, or improper application. Any repairs or
alterations made to the equipment without written authorization from DAVCO ®
Manufacturing Ltd. will void this warranty.
NO OTHER WARRANTY OR GUARANTEE OF ANY KIND IS MADE BY DAVCO®
MANUFACTURING LTD. EXPRESSED OR IMPLIED, STATUTORY, BY
OPERATION OR LAW, OR OTHERWISE, INCLUDING MERCHANTABILITY
AND FITNESS FOR ANY PARTICULAR PURPOSE. DAVCO MANUFACTURING
LTD. DISCLAIMS LIABILITY FOR DIRECT, INDIRECT, INCIDENTAL, OR
CONSEQUENTIAL DAMAGES OF ANY KIND.
WARRANTY LIMITATIONS:
Modifications: The limited warranty covers the DAVCO®Brush cutter as built by
DAVCO ®Manufacturing Ltd.
Carriers: Most skid steers with adequate hydraulic flows.