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CRITICAL PROCEDURE FOR PROPER WHEEL TRACTION
Proper Drive Wheel traction is obtained for the PowerStak Straddle unit using this Procedure
All PowerStak Models are designed and intended to operate on an unfinished concrete floor surface. If any
PowerStak is operated on smooth or polished concrete, sealed concrete, epoxy sealed floor, linoleum or
other smooth surfaces Drive Wheel traction performance may be affected; If traction issues are encountered
Rubber Drive Wheels are available through special order. Please contact Customer Service at Presto
Lifts 1-800-343-9322
When any PowerStak is operated on a wet, oily, powdery, sandy or non-uniform liquid or granular surface
Drive Wheel traction performance will be affected and loss of traction will occur.
NOTE: STRADDLE LEGS MUST BE ADJUSTED IN ACCORDANCE WITH THIS PROCEDURE
1. PowerStak unit located on flat, clean uniform surface, unloaded, forks raised a minimum of 1" off the floor
2. Determine the desired/required straddle width dimension (2 inches greater than pallet width, 1" on each side of
the pallet or load, up to a maximum of 50 inches inside width)
3. Be sure to fully loosen all bolts before moving stabilizing legs. Adjust one stabilizer leg at a time – using a pry
bar, pinch bar, rubber mallet etc. move the straddle leg out from the base tube to the desired position. Do not
move too far, see picture below, if the ¼" wide painted White Line is visible the leg is pulled out too far; Maxi-
mum movement 5 ½" for each leg for 2200 pound units.
4. Adjust second Straddle Leg – using a pry bar, pinch bar, rubber mallet etc. move the straddle leg out from inside
the base tube to the desired straddle width position.
5. Straddle Legs must be symmetrically adjusted, both legs adjusted to the same extended dimension
CRITICAL – STRADDLE BOLT TIGHTENING SEQUENCE & PROCEDURE
Set up procedure for PowerStak Straddle legs with 5 Bolts:
BOLTS 2
BOLT 4
Back off all bolts and follow steps.
First - tighten Bolt 1 to 85 foot pounds
Second - tighten Bolts two (2) to 85 foot pounds
Third - tighten Bolt 3 to 85 foot pounds
Fourth – tighten Bolt 4 to 25 foot pounds - NOT 85 foot pounds!
Last - securely tighten all lock nuts
PAGE 4 OF 31
SET-UP PROCEDURE FOR POWERSTAK STRADDLE LEGS
1020 REF.
BOLTS 2
BOLT 3
BOLT 1
1270 MAXIMUM
PRESTO OWNER'S MANUAL
BOLT 4
WHITE LINE
JUST SHOWING
Page 4
NOTE:
When adjusted correctly, white
line cannot be seen.
POWER STAK
!
0218 IH-3937
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