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G-Force GFQ5000 QL50 Shank

Hammer Specifications - G-Force QL50 Shank

G-Force QL50 diagram
Item #
Description Part #
1
Back Head G5001
2
Back Head O-Ring G5002
3
Choke  
4
Air Check Valve G5004
5
Air Check Valve Spring G5005
6
Make-Up Rubber (Buffering) G5006
7
Spacer Tube G5007
8
Air Distributor G5008
9
Air Distributor O-Ring G5009
10
Cylinder G5010
11
Cylinder Stop Ring G5011
12
Wear Sleeve G5012
13
Piston G5QL5013
14
Piston Stop Ring G5QL5014
15
Bit Bearing O-Ring G5QL5015
16
Bit Bearing G5QL5016
17
Bit Retaining O-Ring G5QL5017
18
Bit Retaining Ring G5QL5018
19
Chuck (Drive Sub) G5QL5019
  Choke Plug Kit G5029
  O-Ring Kit G5030

Features:

 

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


Length (w/o drill bit)
44.38"
G-Force Logo


AWDS logo
Outside Diameter
4.527"
Weight (w/o bit)
126.4 lbs.
Cylinder Bore
3.465"
Piston O.D.
3.736"
Piston Stroke
3.93"
Piston Weight
26 lbs.
Hole Sizes
5" - 6 1/2"
Air Pressure Consumption
100 psi - 350 psi
Wrench Size
A/F 3.464"
Connection
Std. 3 1/2" API Reg Pin


Air Consumption Chart

PSI
150
200
250
300
350
400
CFM with blank choke
280
400
520
660
800
-
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
3.74"
greater than or equal to 0.010"
Piston OD
B
3.736"

Wear Sleeve / Piston Clearance diagram

Inner Cylinder / Piston Clearance

Part
New Dimension
Discard Clearance
Cylinder ID
C
3.13"
greater than or equal to 0.010"
Piston OD
D
3.126"

Inner Cylinder / Piston Clearance diagram

Distributor Probe / Piston ID Clearance

Part
New Dimension
Discard Clearance
Distributor Probe OD
F
1.181"
greater than or equal to 0.010"
Piston ID
E
1.194"

Distributor Probe / Piston ID Clearance diagram

External Wear

Description
Wear Limit
Wear Sleeve Reverse Dimension
4.252"
Wear Sleeve Discard Dimension
4.134"

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 1/3 Pint per 100 cfm per hour.

Recommended Grades of Lubricant

ESSO
MATEX
CASTROL
SHELL
MOBILE
AROX EP 150
RDO 302
RD OIL DP 100
AIR TOOL OIL S2 A 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 - 500 lbs.
Maximum @ 350 psi - 2000 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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