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BOX "A" - JACK CYLINDER KIT: MODEL 838HLW / 868HLW
THIS BOX CONTAINS THE FOLLOWING;
1 30.5" Hydraulic Ram
1 3.5" Centering Collar
3 24" Braces
1 1.25" Locking Safety Collar
1 Jack Pump Handle
1 Hex Key Wrench
32" Starting Height
Step 1: Mount the Hydraulic Ram to the Base Frame by bolting through the bottom of the frame into the
existing hole in the cylinder bottom using a jam nut configuration; one (1) each 3/8 x 16 x 1" bolts,
3/8 x 16 nuts and 3/8 lock washers.
Step 2: Install the Wheel Kit ("F/K"ÊinstructionÊsheet)
Step 2: Install each of the 24" Braces to the inner holes on the Base Frame with jam nuts using 1" bolts.
Step 3: Slide the 3.5" centering collar over the top of the Hydraulic Ram and attach each of the 24" braces to
the centering collar with jam nuts (3) using 1-1/4" bolts. Finger tighten.
Step 4: Center the Hydraulic Ram inside the centering collar bringing the bolts into firm contact with the
cylinder. *Do not over tighten*
Step 5: Install the jack pump handle storage pin in any open hole using the 7" pump handle storage pin and
one (1) each of the 3/8 x 16 nuts and 3/8 lock washers as shown below.
Please READ and follow the jacking instructions before using.
CopiesÊofÊtheÊinstructionÊsheetsÊareÊavailableÊonÊourÊwebsite:Êwww.alphaaviation.com
BOLT
NUT
WASHER
JAM NUT CONFIGURATION
SEE BACK SIDE FOR ADDITIONAL STARTING HEIGHTS
4 3/8" x 16 x 1" Bolts
3 3/8" x 16 x 1-1/4" Bolts
9 3/8" x 16 Nuts
8 3/8" Lock Washers
1 7" Pump Handle Storage Pin
Check All Jam Nuts To Ensure They Are Tight
BOLT
NUT
JACK BRACE
WASHER
SUPPORT COLLAR
3/8"
NUT
BASE
3/8" LOCK
WASHER
HANDLE STORAGE PIN
11/23/22
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Table of Contents
Related Manuals for Alpha 838HLW
Summary of Contents for Alpha 838HLW
- Page 1 BOX “A” - JACK CYLINDER KIT: MODEL 838HLW / 868HLW THIS BOX CONTAINS THE FOLLOWING; 1 30.5” Hydraulic Ram 4 3/8” x 16 x 1” Bolts 1 3.5” Centering Collar 3 3/8” x 16 x 1-1/4” Bolts 3 24” Braces 9 3/8”...
- Page 2 BOX “A” - MODEL #838HLW / #868HLW 838HLW - Box “G” 6” Welded Riser (NoÊInstructionÊSheet) 38” Starting Height; Install the 6.25” Welded Riser between the Ram Cylinder and Base Frame using the 7” bolt and 3/8” lock washer provided with Box G and a 3/8” nut.
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Page 3: Wheel Installation
BOX “F ” (F/K) - BASE FRAME & WHEEL KIT for ALL MODELS THIS BOX CONTAINS THE FOLLOWING: 1 Base Frame 2 3/8 x 16 x 1” Bolts 1 Left Wheel Bracket 2 3/8 x 16 Nuts 1 Right Wheel Bracket 2 3/8 Lock Washers 2 Wheels 8 1/4 x 20 x 3/4”... - Page 4 BOX “H” - MODEL 368W / 868W / 868HLW RISER TUBES & END CAPS THIS KIT CONTAINS THE FOLLOWING: Single Pack Double Pack 1 6” Riser Tube 2 6” Riser Tubes 2 Riser Tube End Caps 4 Riser Tube End Caps 4 3/8”...
- Page 5 BOX “M” - MODEL 868HLW LONG RISER & BRACES KIT THIS KIT CONTAINS THE FOLLOWING: 1 30” Riser Tube 7 3/8” x 16 x 1” Bolts 1 3” Centering Collar 7 3/8” x 16 Nuts 3 60” Braces 7 3/8” Lock Washers 2 Riser Tube End Caps 62”...
- Page 6 BOX “M” - Cont’d 68” STARTING HEIGHT Step 1: Mount one of the Riser End Caps to the bottom of the Ram Cylinder by bolting through the end cap into the existing hole in the bottom of the cylinder using the jam nut configuration shown below; one (1) each 3/8”...
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Page 7: Jacking Instructions
JACKING INSTRUCTIONS CAUTION: Jacking of aircraft and working around or under jacked aircraft are hazardous work operations and should only be attempted by experienced personnel. IF IN DOUBT, SEEK EXPERIENCED INDIVIDUALS TO HELP YOU RAISING: Always jack on a level surface. Center the jack under the aircraft jack point. -
Page 8: Product Warranty
Items which are found to be defective will be either repaired or replaced at the discretion of Alpha Aviation Inc. All items returned to AAI for any reason should be shipped freight prepaid. All items repaired or replaced will be returned to the customer by AAI, freight pre-paid. - Page 9 SUGGESTED JACK TESTING and REFILL PROCEDURES CHECKING OIL LEVEL The easiest method is to simply pump the unloaded jack to its maximum length. If the jack reservoir contains adequate oil it will reach its full extended length and the jack handle will become difficult to pump as you will feel the oil bypassing.
- Page 10 RESEAL PROCEDURES LEAKING PUMP PISTON SHAFT Do not drain jack oil. Place the jack on its side with the pistons up and the valve chamber elevated to drain the oil from the valve section into the reservoir. Remove the rocker assembly pins as necessary to gain access to the piston shaft and remove the leaking piston.
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