4.5
MAINTENANCE INSTRUCTIONS
Annual maintenance for the Model 880 Delta, Model 880 Sigma
and Model 880 Elite exposure devices
Tools requiredfor Model 880 complete maintenance
G5/32in Allen wrench for the 10-32 socket head lock mount and selector-ring screws.
G3/32in Allen wrench for the socket head plunger lock screw.
GNumber 30 drill bit and pop-rivet gun for removal and installation of 1/8in s/s rivets.
GTamperproof tool bit for back plate and front plate 5/16in-18 screws.
GCalibrated torque wrench (in/lb) for locking mechanism's socket head screws.
GSmall slot screwdriver for source identification tag 6-32 screws.
GU-tool (part no. SK1761) for functional checks of locking mechanism.
GModel A424-9 XL mock source assembly and short length control cable for
operational tests after servicing.
Materials required for Model 880 complete maintenance
GMil-Spec grease MIL-G-23827B or C, MIL-PRF-23827C
(or equivalent radiation resistant grease).
GTemporary Locktite™ or Vibratite™ thread sealant.
GRecommended solvents for cleaning and degreasing operations: clean mineral spirits.
(Follow manufacturers safety precautions for use, handling, storage and disposal.)
GClean lint-free rags.
G12-gauge gun patches or any lint-free cloth for cleaning the ‘S’ tube.
GLarge pan for use in cleaning and degreasing the remote control cable and
mechanical parts.
GStainless steel, brass or synthetic bristle brush to be used during degreasing and
cleaning of parts.
GLight viscosity oil, such as 3-in-1™ oil to lubricate plunger lock.
GModel 880 label and 4 x 1/8in stainless steel rivets.
GPermantex™ anti-seize thread lubricant.
GLock mount, rubber sleeves - 4 x part number SLV005.
GReplacement springs for the locking mechanism -
1 x compression spring part number SPR006,
1 x compression spring part number SPR005,
2 x compression springs part number SPR004.
GReplacement springs for the outlet port -
2 x compression springs part number SPR033.
GBayonet-type source guide tube for operational tests of the outlet port.