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G-Force GFM6000 SD6 Shank

Hammer Specifications - G-Force SD6 Shank

G-Force SD6 diagram
Item #
 Description Part #
1
 Back Head G6001
2
 Back Head O-Ring G6002
3
 Choke  
4
 Air Check Valve G6004
5
 Air Check Valve Spring G6005
6
 Spacer Tube G6006
7
 Air Distributor G6007
8
 Air Distributor O-Ring G6008
9
 Cylinder G6009
10
 Cylinder Stop Ring G6010
11
 Wear Sleeve G6011
12
 Piston G6M6012
13
 Piston Stop Ring G6M6013
14
 Bit Retaining O-Ring G6M6014
15
 Bit Retaining Ring G6M6015
16
 Chuck (Drive Sub) G6M6016
  Choke Plug Kit G6029
  O-Ring Kit G6030

Features:

 

  • Easy to service
  • Special heat-treated alloy piston for long life, Rockwell hardness 60
  • Back reaming buttons
  • Reversible wear sleeve
  • Minimum loss of performance when injecting foam or water

Length (w/o drill bit)
53.93"
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Outside Diameter
5.41"
Weight (w/o bit)
219 lbs.
Cylinder Bore
4.496"
Piston O.D.
4.491"
Piston Stroke
3.93"
Piston Weight
26 lbs.
Hole Sizes
6" - 8"
Air Pressure Consumption
100 psi - 350 psi
Wrench Size
A/F 3.968"
Connection
Std. 3 1/2" API Reg Pin


Air Consumption Chart

PSI
150
200
250
300
350
400
CFM with blank choke
350
565
720
875
995
1,130
with 1/8" choke
375
595
760
925
1,060
1,205
with 1/4" choke
425
665
845
1,095
1,270
1,350

All Hammers come Fitted with Blank Choke located in the Dart Valve

pdfClick here to download brochurepdf


Hammer Service Log

Wear Sleeve / Piston Clearance

Part
New Dimension
Discard Clearance
Wear Sleeve
A
4.496"
greater than or equal to 0.010"
Piston OD
B
4.491"

Wear Sleeve / Piston Clearance diagram

Inner Cylinder / Piston Clearance

Part
New Dimension
Discard Clearance
Cylinder ID
C
3.75"
greater than or equal to 0.010"
Piston OD
D
3.745"

Inner Cylinder / Piston Clearance diagram

Distributor Probe / Piston ID Clearance

Part
New Dimension
Discard Clearance
Distributor Probe OD
F
1.328"
greater than or equal to 0.010"
Piston ID
E
1.336"

Distributor Probe / Piston ID Clearance diagram

External Wear

Description
Wear Limit
Wear Sleeve Reverse Dimension
5.118"
Wear Sleeve Discard Dimension
4.96"

NOTE:

  1. If no evidence of significant air pressure drop or if wear sleeve is wearing evenly on the top and bottom end, recommendation is to not reverse wear sleeve.
  2. Chuck should be replaced when wear transfers to wear sleeve.


Lubrication

G-Force Series Hammers are precision-made tools and should be treated as such. Only the highest quality lubrication should be used and a constant flow of oil must be maintained at all times. Recommended lubrication amount 1/2 Pint per 100 cfm per hour.

Recommended Grades of Lubricant

ESSO
MATEX
CASTROL
SHELL
MOBILE
AROX EP 150
RDO 302
RD OIL DP 100
TORCULA 320
ALMO NO. 5

Heavy duty oil is recommended for all year-round use, in particular where air supply to the hammer is at high temperature. If lighter grade oil is required due to very low ambient temperatures, amount of oil being used should be increased by 30 percent.

Recommended Pull Down

Minimum @ 100 psi - 1000 lbs.
Maximum @ 350 psi - 3500 lbs.

Missile Warranty will be voided by the following:

  1. Welding on Wear Sleeve.
  2. Heating Case with a Torch.
  3. Gripping Wrenches across Threads.
  4. Hammering on Casing.

READ WARNING LABEL ATTACHED TO HAMMER.

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