FOR MODELS: JGI, JGM, JGN, JGP AND JGQ SECTION 7 - APPENDICES
PAGE 7-4 9/08
3. Adapters to 3/8 in. and 3/4 in. Drive.
4. 1-1/4 and 1-5/8 in. Open End Crowfoot "Torque Adapter" Extension Wrenches.
5. 1-1/2 and 2-1/4 in. boxed end "Torque Adapter" Extension Wrenches.
6. 1/4, 1/2, and 5/8 in. Hex Key (Allen) Socket.
7. Calibrated Torque Wrench, 50 LB-FT to 250 LB-FT (65 to 350 N·m) range, for
use with right and left hand threads.
• 3/4 in. Square Drive Wrench Set, including:
1. 12 Point Socket Set w/ Breaker Bar, Ratchet, Extensions.
2. Adapters to 1/2" and 1" Drive.
3. Calibrated Torque Wrench to 600 LB-FT (800 N·m) range.
• 1 in. Square Drive Wrench set, including:
1. 12 Point Socket Set (w/ Sockets up through 2-5/8 in.).
2. Calibrated Torque Wrench to 1000 Lb-Ft (1400 N·m) range.
• Two (2) Dead Blow Semi-Soft Faced Hammers, Primarily for Slugging the Cross-
head-Balance Nut Wrench, approximately 100 ounce or 6 lb (3 kg) for JGC:D frames
and 56 ounce or 3.5 lb (1.5 kg) for smaller frames.
• Long Blade Feeler Gage Pack in Assorted Thickness’.
• Pry Bar - 3 feet (1 m) Long.
• Hexagon Allen-Type Key-Wrenches (to ANSI/ASTM B18.3) for Piston-Nut
Set-Screws. Two Hex Wrenches are Consumed (Destroyed) with each Tightening of
a Piston Nut. A quantity of hex wrenches needs to be kept on hand, considering the
consumption during maintenance. Hex Allen-type-wrench sizes for piston-nut
set-screws - nominal inch sizes:
1. JG:A:M:N:P:Q:I 3/32
2. JGR:J:W:B:V:KBB:V 1/8
3. JGH:E:K:T 5/32
4. JGC:D:Z:U 3/16
• Tape Measure.
• Flashlight.
• Small Mirror on a Flexible Extension Rod.
• Small Magnet on a Flexible Extension Rod.
• Small Gas Torch.
• Electric and/or Pneumatic Drill
• Twist Drill Set
• Machinist scale with 0.01 inch or 0.5 mm increments.
• Calibrated Button and Needle type Dial Indicators with 0.0005 inches (0.005 mm)
increments, magnetic stands and mounting hardware.
• Torque Multiplier and/or Hydraulic Torque Wrench for larger frame sizes.
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