Ammeter Shows No Charge or Discharge With Engine Operating

177. Engine Starter Fails to Operate

Probable cause

Possible remedy

Bendix drive spring broken ---------------------------------------- Replace spring (par. 184).

Commutator worn, burned or has high mica -------------- Repair commutator (par. 184).

Armature or field coils defective ------------------------------------ Overhaul starter (par. 184).

178. Ammeter Shows No Charge or Discharge With Engine Operating

Probable cause

Possible remedy

Generator regulator defective ------------------------------------------- Repair generator regulator (par. 182).

Generator defective --------------------------------------------------- Repair or overhaul generator (par. 183).

179. Ammeter Needle Fluctuates Rapidly

Probable cause

Possible remedy

Generator commutator has high mica --------------------------------- Turn down commutator and undercut mica (par. 183).

Generator regulator points burned ----------------------------------- Clean or replace defective regulator points (par. 182).

180. Hydraulic Pump Fails to Deliver Sufficient Pressure

Probable cause

Possible remedy

Pump pistons and cylinder barrel defective ------------------ Replace pistons and cylinder barrel (pars. 207-209).

Pump shaft assembly sheared ------------------------------------------- Replace drive shaft assembly (pars. 207-209).

Compensator control defective -------------------------------------- Repair compensator control (pars. 202-206).

181. Hydraulic Pump Fails to Deliver Sufficient Volume

Probable cause

Possible remedy

Pump pistons and cylinder barrel defective or

Replace pistons and barrel assembly (pars. 207-209).

excessively worn.

Port plate excessively worn ---------------------------------------------- Replace port plate (pars. 207-209).

AGO 5742A