Torque Wrench Head Assembly - SPX TWLC Series Operating Manual

Torque Wrench Head Assembly

Before assembly, apply a liberal coat of Revol R5 Moly Anti Seize to the following areas:
• Inside surfaces of both LH and RH sideplates.
• Slider component (all surfaces).
• The pocket where the drive shoe is located within the crank (not the crank bore).
• The driving head of the crank that assembles into the slider.
• LH and RH sideplate journals.
• Ratchet journals (not the teeth).
IMPORTANT: Do not apply lubricant to the ratchet and drive shoe teeth.
The hydraulic torque wrench drive components must be lubricated using the specified product only.
Using alternative lubricants will affect the output and possibly lead to premature component failures.
1. Lay the LH sideplate on a flat surface. Place the slider into position and verify the pin on the slider
face engages with the guide groove in the sideplate.
2. Assemble the ratchet into the LH sideplate. Check that the ratchet teeth are driving in the correct
direction.
3. Place the crank over the ratchet, and engage the drive head of the crank into the slider.
4. See parts list. Install the drive shoe and springs. Verify that the ratchet teeth are driving in the correct
direction and engaged with the drive shoe teeth.
5. Assemble the RH sideplate. Apply specified lubricant to each of the three shoulder screws and
tighten in accordance with the following torque specifications.
front Screw
Head Size
nm
TWL2 10
TWL4 10
TWL8 12
TWL15 20
TWL30 40
6. Manually rotate the ratchet verifying free movement and correct ratcheting action.
Following stripdown and/or lubrication, the hydraulic torque wrench should be calibrated to verify that
the torque output is within specified limits.
© SPX
rear Screws
in-lb nm in-lb
89 10 89
89 12 106
106 20 177
177 40 354
354 80 708
Repair Procedures continued
22
Form No. 1000529
Rev. 1 December 6, 2011