Pullers (pp. 903-942) - STANLEY - #3

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Untitled table.main {} tr.row {} td.cell {} div.block {} div.paragraph {} .font0 { font:8.00pt "Arial", sans-serif; } .font1 { font:9.00pt "Arial", sans-serif; } .font2 { font:11.00pt "Arial", sans-serif; } .font3 { font:16.00pt "Arial", sans-serif; } .font4 { font:17.00pt "Arial", sans-serif; } .font5 { font:18.00pt "Arial", sans-serif; } .font6 { font:19.00pt "Arial", sans-serif; } .font7 { font:14.00pt "Franklin Gothic Medium", sans-serif; } .font8 { font:14.00pt "Impact", sans-serif; } .font9 { font:14.00pt "Times New Roman", serif; } PULLER SELECTION GUIDE STEP1 - DETERMINE WHICH OF THE 3 BASIC ■ PULLING TASKS IS BEING UNDERTAKEN ■ STEP 3 - DETERMINE THE SIZE OF PULLER REQUIRED • External Pull - the jaws face inward pulling on the ■ outside of thecbeccbeng^^d^^^^M • Internal Pull - the jaws face outward pulling on the ■ inside of the object being pulled. ^k^k^k^kW • Press-N-Pull™ - pulling applications in which a void exists | where the forcing screw would normally rest, or where a | shaft is being pulled out of a housing. ^^^^^H • Jaw Spread - Spread is the distance between the| - pullers' jaws. Puller jaw spread must be greater thanj Ithe diameter of the object being pulled to allow the jaw hooks to seatfully_^^^H|^^^^^^H • JawReach-^eaESSSe^riWbottoEf^ | crossarm to the flats of the jaw tips. Puller jaw reach must | be greater than the thickness of the object being pulled plus the length of the protruding shaft. p^p^p^M • JawWidth^vîdTi^hedistanc^cros^h^atso^^ ■ jaws. Puller jaw width should be selected to grip as much surface area of the part being pulled as possible. Jaw ■ hooks should also reach far enough onto the partso that Ithey will not slip off under load. ^k^k^kWk^k^k^M STEP 2 ■ against a shaft while the jaws pull the object off the shaft. • Hollow Shaft- Step plate adapters can be used to provide | a base for the forcing screw to pu h i..... ^^^M • Legs/Pads - Seemingly impossible pulling situations where | a center shaft is non existent to push against can be accomplished with accessories. Legs and pads used in a Press-N-Pull™ set up push against the statiQnary surface | around the part being pulled. ^^^^B^^^H STEP 4 - DETERMINE HOW MUCH PULLER IS NECESSARYR)RASPECIFICPUL^H • Area of Resistance ^KofreSSeTS^Sofl ■ actual contact between the object being pulled and the part it is being pulled from. The larger the area of resistance, ■ 9m eu mue 9m resistance can also come from rustt, corrosion, dirt and | otherfactors. ^^^^^^H^^^^^^H • A general rule o^^ibistoLis^slar^^Pulle^^| ■ possible. Extra power means less work and less chance ofbreakage. • 3 Way/ 2 Way - Always use a 3 jaw puller whenever ■ clearance permits. A 3 jaw setup is more stable andj disperses pulling pressure over a 50% larger area 1 providing a more even pulling force. SAFETY TIPS • Alwaysusesafetygoggles.Seriouseyeinjuryispossible. • Do not use a power impact wrench with any puller. • Always use the largest puller that fits the job. Use 3 jaws if possible. • Use the largest jaws and shortest legs that fit the job. • Be sure to square the puller to the work so that the jaws and screw are parallel. • Shield workto protectyourself and bystanders. • Use light lubricating oil on the forcing screw.