Ingersoll-Rand 7790-A Series Operator's Manual
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Ingersoll-Rand 7790-A Series Operator's Manual

Hoists
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Form 10590149
Edition 2
September 2005
HOISTS
Series 7790-A & 7792-A
Operator's Manual
Save These Instructions

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Summary of Contents for Ingersoll-Rand 7790-A Series

  • Page 1 Form 10590149 Edition 2 September 2005 HOISTS Series 7790-A & 7792-A Operator’s Manual Save These Instructions...

  • Page 2: Air Supply Requirements

    Safety Information Operating Precautions To aid the operator’s understanding of proper and safe use of hoists, the publication “OVERHEAD HOISTS”, ANSI B30.16-1981, can be purchased from: American Standards Institute, Inc. 1430 Broadway New York, New York 10018 • Do not use the hoist described in this manual to lift or transport humans.

  • Page 3: Adjusting Brake

    Adjusting Brake • Properly attach rated load of hoist to load chain hook. • Slowly raise load to 6” height above floor by slowly pulling pull chain handle or depressing pendent control. • Release pull chain handle or pendent control. •...

  • Page 4: Routine Inspection

    Routine Inspection The type of application for a hoist varies so greatly it is impractical to recommend an exact time-table for inspection of the hoist. Where hoist is subjected to continuous operation with capacity loads, it is recommended the unit be inspected twice a week.

  • Page 5: Motor Disassembly

    Maintenance Dissassembly Head Disassembly To remove head section from housing without disassembling head components, remove head with control rod (59) attached to gear (25). To accomplish this - - Remove two screws (96) and housing cap (95). - Drive out roll pin (61) and remove brake block (60). - Drive out roll pin (69) from control arm (68).

  • Page 6: Housing Disassembly

    - Assemble motor to housing. - Lubricate and assemble o-rings (35) into counterbore of end plate (38). - Assemble new gasket (31) and head to housing. Brake and Gearing Disassembly - Remove two screws (96) and housing cap (95). - Carefully slide brake spring (94) part way off brake shoes (92) and using brake spring spreader (33541), remove brake spring (94).
  • Page 7 Upper Hook Disassembly - Remove nuts (153), washers (152) and bracket (150). - Drive out roll pin (147) - One-Ton Models. Roll pins (155) and (154) - Two-Ton Models. - Remove collar (143) and balls (144) - One-Ton Models. Collar (116), thrust bearing (120) and bearing races (119) - Two-Ton Models.
  • Page 8 CAUTION: TIGHTEN NUTS 25 TO 30 FT. LBS. TORQUE ONLY. 94 92 Form 10590149-Edition 2...
  • Page 9 ( 2-TON MODELS) 123 ( 1-TON MODELS) 149 (1-TON MODELS) PART NUMBER THIS SIDE. Form 10590149-Edition 2 122 ( 2-TON MODELS) 148 ( 1-TON MODELS) ++ ASSEMBLE WITH SPLIT SIDE ONE UP AND ONE DOWN. + ASSEMBLE WITH SPLIT SIDE ONE UP OR DOWN. (2-TON MODELS) DOWN ITEMS INCLUDED IN SERVICE KIT PART NUMBER 41619-1.

  • Page 10: Parts List

    Parts List Sl. no. Description Head Assembly (standard models) includes items 1 thru 21, 24 thru 30, 33 and 34 with adapter (46211) Head Assembly (spark-resistant models) (includes items 1 thru 19, 24 thru 30, 33, 34 and 59 with adapter 46212) Adapter for standard models for spark-resistant models...
  • Page 11 Parts List Sl. no. Description * 74 Cotter Pin Carrier Bearing Race (4 req'd) Gear (2 req'd) Shaft (2 req'd) Spacer * 80 Bearing * 81 Bearing * 82 Retaining Ring * 83 Retaining Ring Gearing Assembly (includes items 70 thru 73 and 75 thru 83) Fixed Ring Gear Roll Pin (2 req'd)
  • Page 12 Parts List Sl. no. Description Roll Pin * 148 Safety Latch (includes bolt, nut and spring) Hook Steel Hook for standard 1 ton models Bronze Hook for 1500 lb spark-resistant models LOWER HOOK ASSEMFLY for 1 ton models (includes items 143 thru 145 and 147 thru 149 with steel hook) LOWER HOOK ASSEMBLY for 1500 lb spark-resistant models (includes items 143...

  • Page 13: Model Identification

    Model Identification Model No. Upper Mounting 7790-A9 Hook Ass’y 43002 7790-A11 7790-A13 Hook Ass’y 43002 7790-A15 7792-A9 Hook Ass’y 43049 7792-A11 7792-A13 Hook Ass’y 43049 7792-A15 Spark Resistant Models Model No. Upper Mounting 7790-A21 Hook Ass’y 43097 7790-A22 7792-A21 Hook Ass’y 43096 7792-A22 7792-A23 Hook Ass’y 43096...
  • Page 14 Notes Form 10590149-Edition 2...
  • Page 15 Notes Form 10590149-Edition 2...
  • Page 16 Ingersoll-Rand © 2005 Company...

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7792-a series

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