20
RSL Torque Wrench
5.3 Torque Wrench Drive Assembly, Testing,
and Disassembly [continued]
5.3.5 Assemble: Model RSL28000
a. Install seals and wear rings into end
cap, torque wrench drive housing, and
piston as needed.
b. Insert piston into cylinder to end of
stroke.
c. Fill to high pressure inlet hole with
hydraulic oil.
d. Assemble end cap to torque wrench
drive.
i. Lubricate bolts.
ii. Tighten 22 bolts to 22 Ft.lbs.
5.4 Hexagon Cassette and Square Drive
Cassette Maintenance
5.4.1 General cleaning, lubrication, and
inspection guidelines:
a. During initial 8 hour break-in period
clean, inspect and lubricate cassette
after each hour of use. Use the
inspection results to adjust the one hour
interval.
b. You may increase the time between
cleanings, re-lubrication, and
inspections when:
i. Tool is operated at low torque/pressure.
ii. Inspections reveal minimal wear.
c. Decrease the time between cleanings,
re-lubrication, and inspections when
tool is:
i. Exposed to sand or other abrasive
material.
ii. Exposed to salt spray, salt water, high
humidity, etc.
iii. Subject to higher operating pressure.
iv. Subject to increased usage.
d. Frequent cleanings and re-lubrication
increase tool life.
Fig 5.4-1 Pawl Inspections
5.4.2 Check housing and all internal parts for
cracks, chips, deformation, and wear.
a. Immediately replace parts which have
cracks, chips, deformation, or excessive
wear.
b. Inspect: Square drive, square driver,
pawl (Fig. 5.4-1), pawl driver, pawl
holding spring(s), sq. dr. wrench
housing, hex wrench housing halves,
fasteners, etc.
5.4.3 Hexagon cassette disassembly:
a. Remove socket head cap screw joining
hex wrench housings.
b. Separate housing halves to expose
ratcheting assembly.
c. Inspect pawl teeth engagement (Fig.
5.4-2): It is extremely important that
pawl and hex insert teeth are in precise
engagement.
5.4.4 Square drive cassette disassembly:
a. Remove sq. dr. from sq. dr. housing.
Section 4.6.3.
b. Remove ratcheting assembly through
bottom of sq. dr. housing.
c. Inspect pawl teeth engagement (Fig.
5.4-2): It is extremely important that
pawl and sq. dr. teeth are in precise
engagement.
5.4.5 Cassette Assembly:
a. Before assembly:
i. Inspect pawl teeth engagement (Fig.
5.4-2): It is extremely important that
pawl and square driver (or hex insert)
teeth are in precise engagement.
ii. Replace worn, cracked, damaged, etc.
parts.
iii. Clean all components.
iv. Lubricate all moving surfaces with
appropriate lubricant.
b. Reverse cassette disassembly steps.
Fig 5.4-2 Pawl Inspections
Pawl Teeth must be in
Precise Engagement
with Square Driver or
Hex Insert Teeth
Inspect For Cracks
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